{
  "schema": "canli.company-reference.v1",
  "cik": "0000807707",
  "name": "VOXX INTERNATIONAL CORPORATION",
  "selection_policy": "extended-v23",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000807707.json",
  "source_sha256": "60eff6fddf6e9029c6bfdb6992aa03414198b3f4aca5eefc14678f6539203e72",
  "fetched_at": "2026-09-21T17:17:10.547Z",
  "policy": "Latest-filed annual-report facts per unit and reporting period at capture time. Duration facts cover 300 to 400 days. This selection can include restatements and is not a point-in-time backtest dataset. Missing concepts are omitted, never zero-filled. Values retain original units and are not currency converted. Extended concepts require compatible unit shapes and at least three reporting ends with changing values within one unit. Constant or incompatible added histories are omitted.",
  "claim_boundary": "Public company accounting reference, not market prices, returns, an investment recommendation, or ALPHAC performance. Validate a separately constructed return series with the validation API; accounting values are not returns.",
  "concepts": [
    {
      "tag": "Assets",
      "taxonomy": "us-gaap",
      "label": "Total assets",
      "kind": "instant",
      "meaning": "Resources recognized on the balance sheet. Book assets are not the market value of the business.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 444006000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 519451000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 586664000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 550818000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 441571000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 508811000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 575644000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 668486000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 667190000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 677513000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 747150000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 829272000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 632882000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 501097000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Liabilities",
      "taxonomy": "us-gaap",
      "label": "Total liabilities",
      "kind": "instant",
      "meaning": "Recognized obligations at the reporting date. The definition and scope differ from interest-bearing debt.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 187706000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 210610000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 236501000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 171489000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 90861000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 113710000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 125526000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 277171000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 271296000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 281373000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 317566000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 384736000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 211085000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 108151000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "StockholdersEquity",
      "taxonomy": "us-gaap",
      "label": "Stockholders equity",
      "kind": "instant",
      "meaning": "The reported residual interest after liabilities. It is an accounting amount, not market capitalization.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 294867000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 342984000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 381102000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 407420000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 376179000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 407672000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 455948000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 390005000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 396140000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 429584000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 444536000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 421797000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 392946000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CashAndCashEquivalentsAtCarryingValue",
      "taxonomy": "us-gaap",
      "label": "Cash and cash equivalents",
      "kind": "instant",
      "meaning": "Cash and qualifying short-term liquid investments under the filer’s accounting policy. Restricted cash and longer-term investments may be reported separately.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 10986000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 6134000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 27788000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 59404000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 37425000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 58236000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 51740000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 956000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 11767000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 8448000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 10603000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 19777000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 13606000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 98630000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-02-28",
          "val": 69511000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010Q1I",
          "unit": "USD"
        },
        {
          "end": "2009-02-28",
          "val": 69504000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetIncomeLoss",
      "taxonomy": "us-gaap",
      "label": "Net income or loss",
      "kind": "duration",
      "meaning": "Reported profit or loss for the period. Check the filing for attribution, exceptional items and discontinued operations before comparing companies.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -40850000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -27451000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": -22333000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 26767000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -26443000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -46091000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 35304000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 4422000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -2682000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -942000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -26597000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 22492000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInOperatingActivities",
      "taxonomy": "us-gaap",
      "label": "Operating cash flow",
      "kind": "duration",
      "meaning": "Cash generated or used by operating activities. Working-capital timing can make this differ substantially from reported income.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -20523000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -38208000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": -2960000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 36611000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -1009000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 22562000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -25539000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": -1790000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 27521000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 47428000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 66817000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 25523000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 62867000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 32130000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 28222000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PaymentsToAcquirePropertyPlantAndEquipment",
      "taxonomy": "us-gaap",
      "label": "Capital expenditure payments",
      "kind": "duration",
      "meaning": "Cash payments to acquire property, plant and equipment. This taxonomy concept does not capture every form of investment or acquisition.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 2731000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 3557000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 3902000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 2907000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 2914000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 4761000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 6238000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 12177000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 19636000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 17195000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 14629000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 20210000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 12364000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 3055000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 5017000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "RevenueFromContractWithCustomerExcludingAssessedTax",
      "taxonomy": "us-gaap",
      "label": "Contract revenue excluding tax",
      "kind": "duration",
      "meaning": "Revenue from customer contracts excluding assessed taxes under this specific taxonomy concept. It is not automatically comparable to older revenue tags.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 468911000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 534014000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 635920000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 563605000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 394889000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 446816000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 507092000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 514530000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2016",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInFinancingActivities",
      "taxonomy": "us-gaap",
      "label": "Financing cash flow",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net cash from financing activities, including borrowing, repayments and transactions with owners. A positive amount does not establish operating profitability.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 24700000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 16409000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 5285000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": -1940000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -12593000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -924000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -92247000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 9695000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 13695000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -24878000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -60159000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 108254000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 31416000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": -4382000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": -1222000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NetCashProvidedByUsedInInvestingActivities",
      "taxonomy": "us-gaap",
      "label": "Investing cash flow",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net cash from investing activities, including asset purchases, disposals and investment transactions. This differs from capital expenditure payments alone.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -1998000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -3556000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": -34308000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": -13865000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -6709000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -11037000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 161360000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": -12130000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -38587000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -22882000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -14629000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": -125574000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": -179410000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 1420000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": -25009000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "RetainedEarningsAccumulatedDeficit",
      "taxonomy": "us-gaap",
      "label": "Retained earnings or deficit",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Accumulated undistributed earnings or deficit at the reporting date. This balance is not cash available for distribution.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 58272000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 99122000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 126573000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 148906000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 122139000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 148582000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 194673000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 159369000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 154947000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 157629000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 158571000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 185168000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 162676000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 137027000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "WeightedAverageNumberOfSharesOutstandingBasic",
      "taxonomy": "us-gaap",
      "label": "Basic weighted-average shares",
      "kind": "duration",
      "unitKind": "shares",
      "meaning": "Time-weighted shares used for basic earnings per share. This denominator differs from shares outstanding at a single reporting date.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 23428473,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 24325938,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 24287179,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 24201221,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 24394663,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 24355791,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 24290563,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 24160324,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 24172710,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 24330361,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 24109270,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 23415570,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 23080081,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 22938754,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 22875651,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "WeightedAverageNumberOfDilutedSharesOutstanding",
      "taxonomy": "us-gaap",
      "label": "Diluted weighted-average shares",
      "kind": "duration",
      "unitKind": "shares",
      "meaning": "Weighted-average shares used for diluted earnings per share. Potential shares are included under the applicable dilution rules, not simply added to outstanding shares.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 23428473,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 24325938,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 24287179,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 24650106,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "unit": "shares"
        },
        {
          "start": "2020-02-29",
          "end": "2021-02-28",
          "val": 24650106,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 24394663,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 24355791,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 24547246,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 24160324,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 24172710,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 24330361,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 24109270,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 23617101,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 23265206,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 23112518,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 22919665,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "shares"
        }
      ]
    },
    {
      "tag": "EarningsPerShareBasic",
      "taxonomy": "us-gaap",
      "label": "Basic earnings per share",
      "kind": "duration",
      "unitKind": "per-share",
      "meaning": "Reported earnings or loss per basic common share or unit. Inspect attribution, share classes and restatements before comparing periods. This is not a market return.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -1.74,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -1.13,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": -0.92,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 1.11,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -1.08,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -1.89,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 1.45,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 0.18,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -0.11,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -0.04,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -1.1,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 0.96,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 1.11,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 1,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 0.98,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD/shares"
        }
      ]
    },
    {
      "tag": "EarningsPerShareDiluted",
      "taxonomy": "us-gaap",
      "label": "Diluted earnings per share",
      "kind": "duration",
      "unitKind": "per-share",
      "meaning": "Reported earnings or loss per share under dilution rules. Antidilutive instruments may be excluded. A diluted value can equal the basic value without implying no potential dilution.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -1.74,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -1.13,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": -0.92,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 1.09,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -1.08,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -1.89,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 1.44,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 0.18,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -0.04,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -1.1,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 0.95,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 1.1,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 1,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD/shares"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 0.98,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD/shares"
        }
      ]
    },
    {
      "tag": "IncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Current and deferred income tax expense or benefit for continuing operations. This accounting expense differs from cash taxes paid.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -1785000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -39000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 1626000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 4272000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 882000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -6131000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -17445000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 338000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -2351000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 1638000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -58000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 13163000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 13243000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": -10535000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": -11328000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PropertyPlantAndEquipmentNet",
      "taxonomy": "us-gaap",
      "label": "Net property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Carrying amount of property, plant and equipment after accumulated depreciation, depletion and amortization. It is not replacement cost or market value.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 45070000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 47044000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 49794000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 52026000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 51424000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 60493000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 65259000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 65589000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 79422000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 69783000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 83222000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 76208000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 31779000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 19563000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ShareBasedCompensation",
      "taxonomy": "us-gaap",
      "label": "Share-based compensation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Reported noncash expense for share-based payment arrangements. Noncash treatment does not mean the awards have no economic cost to shareholders.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 798000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 609000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 907000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 1749000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 2282000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 551000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 552000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 753000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 859000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 521000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 641000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 435000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 1082000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 1284000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 1138000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingIncomeLoss",
      "taxonomy": "us-gaap",
      "label": "Operating income or loss",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Operating revenue less operating expenses for the reporting period. It excludes items outside the reported operating result and is not free cash flow.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -44041000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -27277000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 7924000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 22479000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -50303000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -42013000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -19099000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": -8168000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -17067000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 16594000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -37375000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 41696000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 43874000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 9017000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 3760000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Assets classified as current under the normal operating cycle or one-year boundary. Not all current assets can be converted immediately into cash.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 235868000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 285021000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 330772000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 319339000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 217820000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 246385000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 265859000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 273348000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 264051000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 301715000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 325857000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 357242000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 307112000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 340830000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InterestExpense",
      "taxonomy": "us-gaap",
      "label": "Interest expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Borrowing costs recognized as interest expense. This is distinct from cash interest paid and may not include every capitalized borrowing cost.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 4373000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 2299000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 550000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 825000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 799000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 951000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 2700000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 3879000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 3142000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 3880000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 5210000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 6302000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 3520000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 2138000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 1310000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LiabilitiesCurrent",
      "taxonomy": "us-gaap",
      "label": "Current liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Obligations classified as current under the operating-cycle or one-year boundary. The balance includes more than short-term borrowing.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 96983000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 153387000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 204016000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 146796000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 71022000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 95216000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 95387000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 130067000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 131884000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 147403000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 146780000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 156539000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 122830000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 82302000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsPayableCurrent",
      "taxonomy": "us-gaap",
      "label": "Current accounts payable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current amounts owed to suppliers for goods and services received. This is one component of current liabilities, not all accrued obligations.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 35076000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 35099000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 76665000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 61826000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 22096000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 31143000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 34700000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 46244000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 55790000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 71403000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 55373000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 56894000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 42026000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 27341000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Goodwill",
      "taxonomy": "us-gaap",
      "label": "Goodwill carrying amount",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Recognized goodwill remaining after accumulated impairment. It arises from business combinations and does not measure the current value of the company’s brand.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 63931000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 65308000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 74320000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 58311000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 55000000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-01-31",
          "val": 215000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 54785000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 54785000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-18",
          "val": 880000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 53905000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 53905000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 53905000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 117938000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 146680000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 86069000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 7373000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "FiniteLivedIntangibleAssetsNet",
      "taxonomy": "us-gaap",
      "label": "Net finite-lived intangible assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Finite-lived intangible assets after amortization. This excludes goodwill and should not be combined with indefinite-lived intangible assets without checking scope.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 27005000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 34529000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 38416000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 26745000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 24079000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 44494000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 48929000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 54853000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 76804000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 48688000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 59448000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 65968000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 45584000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccountsReceivableNetCurrent",
      "taxonomy": "us-gaap",
      "label": "Net current accounts receivable",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Current customer receivables after the allowance for credit loss. The balance is not cash collected or a guarantee of collection.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 71066000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 82753000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 105625000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 106165000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 69714000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 73391000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 81116000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 79971000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 87055000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 102766000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 147054000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 152596000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 142585000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 108048000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingExpenses",
      "taxonomy": "us-gaap",
      "label": "Operating expenses",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Recurring operating costs under this accounting concept, generally excluding production costs included in cost of sales. Check filing presentation before combining expense subtotals.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 158060000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 161576000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 161554000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 136068000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 160079000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 163430000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 151396000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 152198000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 160603000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 207276000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 267623000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 195126000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 159081000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 114920000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 102991000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InventoryNet",
      "taxonomy": "us-gaap",
      "label": "Net inventory",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Inventory carrying amount after applicable valuation and LIFO reserves. It does not establish realizable selling proceeds or inventory turnover without other inputs.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 128471000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 175129000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 174922000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 130793000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 99110000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 102379000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 117992000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 122352000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 144028000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 156649000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 144339000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 159099000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 129514000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 113620000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "GrossProfit",
      "taxonomy": "us-gaap",
      "label": "Gross profit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Revenue less the costs directly attributed to the goods or services sold. It precedes other operating expenses and is not net income.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 114019000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 134299000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 169478000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 158547000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 109776000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 121417000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 132297000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 144030000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 143536000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 223870000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 230248000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 236822000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 202955000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 123937000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 106751000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ResearchAndDevelopmentExpense",
      "taxonomy": "us-gaap",
      "label": "Research and development expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Research and development costs recognized as expense. Capitalization policies and acquired projects can make this differ from total cash invested in development.",
      "observations": [
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 9419000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 12115000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 7940000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 7748000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 9169000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 10954000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 13202000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 7234000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AdditionalPaidInCapital",
      "taxonomy": "us-gaap",
      "label": "Additional paid-in capital",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Capital contributed above par value under this concept. It records historical contributions, not the current value of the equity or cash on hand.",
      "observations": [
        {
          "end": "2019-02-28",
          "val": 296946000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 296395000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 295432000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 294038000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 292427000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 290960000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 283971000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 281213000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 277896000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccumulatedOtherComprehensiveIncomeLossNetOfTax",
      "taxonomy": "us-gaap",
      "label": "Accumulated other comprehensive income or loss",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cumulative other comprehensive items after tax, such as translation and unrealized hedging or securities effects. These amounts have not passed through net income.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": -17366000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": -18680000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": -17503000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": -14977000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": -19055000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": -16944000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": -14222000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": -43898000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": -40717000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": -33235000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": -1873000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": -6497000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": -3973000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": -3849000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest",
      "taxonomy": "us-gaap",
      "label": "Total equity including noncontrolling interests",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Equity including the portion attributable to noncontrolling interests. It is larger than or equal to parent stockholders equity and is not market capitalization.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 255393000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 305716000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 346102000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 376069000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 348229000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 395101000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 450118000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 391315000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 395894000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 396140000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 429584000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 444536000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 421797000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 392946000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-02-28",
          "val": 364263000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010Q1I",
          "unit": "USD"
        },
        {
          "end": "2009-02-28",
          "val": 340502000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingLeaseRightOfUseAsset",
      "taxonomy": "us-gaap",
      "label": "Operating lease right-of-use asset",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Carrying amount of the right to use leased assets under operating leases. It reflects discounted remaining payments, not the value of the underlying property.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 2577000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 3632000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 4464000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 4572000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 3143000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 0,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingLeaseLiability",
      "taxonomy": "us-gaap",
      "label": "Operating lease liability",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Present value of remaining operating lease payments. Discount-rate choices and lease terms affect the amount; it is not the sum of undiscounted future rent.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 2666000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 3682000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 4553000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 4701000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 3175000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "LongTermDebt",
      "taxonomy": "us-gaap",
      "label": "Long-term debt",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Long-term borrowings under this concept, which can include the current portion depending on presentation. It is not total liabilities and may exclude leases and other obligations.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 71881000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 37513000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 9786000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 5962000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 6099000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 5776000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 8476000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 97747000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 88169000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 85487000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 109182000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 175016000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 38452000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PropertyPlantAndEquipmentGross",
      "taxonomy": "us-gaap",
      "label": "Gross property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cost of property, plant and equipment before accumulated depreciation. Historical cost does not indicate current value or replacement cost.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 124161000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 120388000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 117233000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 113949000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 107563000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 115050000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 118300000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 112864000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 147420000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 130560000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 142301000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 125939000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 79602000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment",
      "taxonomy": "us-gaap",
      "label": "Accumulated depreciation on property, plant and equipment",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Cumulative depreciation, depletion and amortization recorded against property, plant and equipment. It measures cost allocation to date, not physical wear or market value.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 79091000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 73344000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 67439000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 61923000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 56139000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 54557000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 53041000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 47275000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 67998000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 60777000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 59079000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 49731000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 47823000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IntangibleAssetsNetExcludingGoodwill",
      "taxonomy": "us-gaap",
      "label": "Net intangible assets excluding goodwill",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Intangible assets other than goodwill after amortization and impairment. Internally developed intangibles are usually not recognized, so this understates what a company relies on.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 68766000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 90437000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 101450000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 90104000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 88288000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 119449000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 150320000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 154939000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 185022000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 158455000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 174312000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 205398000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 175349000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 99189000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherAssetsNoncurrent",
      "taxonomy": "us-gaap",
      "label": "Other noncurrent assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Noncurrent assets the filer does not present separately. The composition differs by filer and is described only in the filing.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 2794000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 3720000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 3245000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 1323000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 1638000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 2877000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 13373000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 1699000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 2168000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 6908000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 10331000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 11732000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 3782000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 1634000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherLiabilitiesNoncurrent",
      "taxonomy": "us-gaap",
      "label": "Other noncurrent liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Noncurrent liabilities the filer does not present separately. The composition differs by filer and is described only in the filing.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 2170000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 2947000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 3508000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 5255000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 3294000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 2981000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 3187000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 2125000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 10480000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 9648000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 9620000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 14948000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 7840000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 8163000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PrepaidExpenseAndOtherAssetsCurrent",
      "taxonomy": "us-gaap",
      "label": "Prepaid expenses and other current assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Prepayments and other current assets grouped under this concept. The balance is not cash and its composition differs by filer.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 20820000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 19817000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 21340000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 22266000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 10885000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 10449000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 14007000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 12332000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 17256000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 26370000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 15897000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 12017000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 13549000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-02-28",
          "val": 9382000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ContractWithCustomerLiabilityCurrent",
      "taxonomy": "us-gaap",
      "label": "Current contract liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Consideration received before performance obligations are satisfied, often called deferred revenue. It is an obligation to deliver, not earned revenue or cash available.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 3810000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 3990000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 4373000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 4178000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 0,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DeferredTaxAssetsNet",
      "taxonomy": "us-gaap",
      "label": "Net deferred tax assets",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Deferred tax assets after the valuation allowance. Realization depends on future taxable income, so the balance is not a receivable from tax authorities.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 13599000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 14755000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 15320000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 13224000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 15201000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 13443000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-02-28",
          "val": 13375000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-02-28",
          "val": 9169000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-02-29",
          "val": 11563000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-02-28",
          "val": 10017000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-02-28",
          "val": 13437000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-02-28",
          "val": 13097000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-02-29",
          "val": 11560000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2012Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DeferredIncomeTaxLiabilitiesNet",
      "taxonomy": "us-gaap",
      "label": "Net deferred tax liabilities",
      "kind": "instant",
      "unitKind": "money",
      "meaning": "Deferred tax liabilities net of related assets under this concept. The amount reflects timing differences and is not tax currently due.",
      "observations": [
        {
          "end": "2024-02-29",
          "val": 2690000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "unit": "USD"
        },
        {
          "end": "2023-02-28",
          "val": 4855000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-28",
          "val": 5300000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-28",
          "val": 6645000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-02-29",
          "val": 3828000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-02-28",
          "val": 5284000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2019Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest",
      "taxonomy": "us-gaap",
      "label": "Pre-tax income or loss from continuing operations",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Income or loss from continuing operations before income taxes and noncontrolling interests. It excludes discontinued operations and is not net income.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -47377000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -30950000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": -25839000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 27638000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -40940000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -58963000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -24104000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": -8930000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -13172000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 696000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -26655000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 35655000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 38892000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 12496000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 11155000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ProfitLoss",
      "taxonomy": "us-gaap",
      "label": "Profit or loss including noncontrolling interests",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net income or loss including the portion attributable to noncontrolling interests. It can differ from the net income attributable to the parent that per-share figures use.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -45592000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -30911000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": -27465000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 23366000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -41822000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -52832000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 27959000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": -3202000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -6063000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -942000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -26597000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 22492000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 25649000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 23031000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 22483000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "ComprehensiveIncomeNetOfTax",
      "taxonomy": "us-gaap",
      "label": "Comprehensive income or loss",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Net income plus other comprehensive income after tax. It includes unrealized items that net income excludes and is not a cash measure.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -39536000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -28628000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": -24859000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 30845000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -28554000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -48813000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 64980000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 1241000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -10164000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -32304000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -21973000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 19968000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "GeneralAndAdministrativeExpense",
      "taxonomy": "us-gaap",
      "label": "General and administrative expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "General and administrative costs reported under this concept, separate from selling expense. Filers group overhead differently, so compare presentation before comparing companies.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 69228000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 73638000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 75955000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 69798000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 68873000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 66935000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 78957000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 79573000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 84234000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 114849000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 118852000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 114653000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 93219000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 67262000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 62854000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "Depreciation",
      "taxonomy": "us-gaap",
      "label": "Depreciation expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Depreciation recognized for the period under this concept. It is a noncash allocation of asset cost and may exclude amortization and depletion reported elsewhere.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 5900000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 6282000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 5890000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 5607000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 5343000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 5360000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 5658000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 5907000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 4702000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DepreciationDepletionAndAmortization",
      "taxonomy": "us-gaap",
      "label": "Depreciation, depletion and amortization",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Combined depreciation, depletion and amortization for the period. A noncash allocation of asset cost, not a measure of maintenance spending.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 12444000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 13130000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 12398000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 11033000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 12398000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 12344000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 12174000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 12386000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 9655000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 15565000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 16183000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 16446000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 10295000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 7865000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 7694000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "AmortizationOfIntangibleAssets",
      "taxonomy": "us-gaap",
      "label": "Amortization of intangible assets",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Amortization recognized on finite-lived intangible assets. It follows acquisition accounting and does not indicate the intangibles are losing usefulness at that rate.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 6544000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 6848000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 6508000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 5426000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 7010000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 6984000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 6516000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 6479000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 4953000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 5378000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 5931000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 5790000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 3992000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 2255000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OtherNonoperatingIncomeExpense",
      "taxonomy": "us-gaap",
      "label": "Other nonoperating income or expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Other income or expense outside operations under this concept. The composition is filer-specific and can include one-time items.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -2080000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -2055000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 323000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 746000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 2332000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 732000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -7590000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": -454000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 576000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 1495000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 11867000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": -2156000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": -3387000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 3204000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 7294000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "NonoperatingIncomeExpense",
      "taxonomy": "us-gaap",
      "label": "Nonoperating income or expense",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Total nonoperating income or expense, which can include interest, investment results and other items. A positive value is not operating profit.",
      "observations": [
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -17766000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -5005000,
          "accn": "0000807707-19-000013",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-05-14",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": -762000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 3895000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -15898000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 10720000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "CurrentIncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Current income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Income tax expense or benefit for the period that is currently payable or refundable. It differs from cash taxes paid and from total tax expense.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 652000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 1744000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 2972000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 1658000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 2193000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 937000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 513000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": -300000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 1183000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -1043000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 8579000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 13751000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 9249000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 3363000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "DeferredIncomeTaxExpenseBenefit",
      "taxonomy": "us-gaap",
      "label": "Deferred income tax expense or benefit",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The deferred portion of income tax expense or benefit, arising from timing differences. It is not tax paid in the period.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -2437000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -1783000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": -1346000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 2614000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -1311000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -7068000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -17958000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 638000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -3534000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 2681000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -8637000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": -588000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 3994000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": -13898000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 1594000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "InterestPaidNet",
      "taxonomy": "us-gaap",
      "label": "Interest paid, net",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash interest paid during the period, net of amounts capitalized where the filer reports it that way. It differs from interest expense recognized.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 5063000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 2813000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 760000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 1101000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 1034000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 1728000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 3752000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncomeTaxesPaidNet",
      "taxonomy": "us-gaap",
      "label": "Income taxes paid, net",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash income taxes paid net of refunds during the period. It differs from income tax expense and can reflect prior years and estimated payments.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 2985000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 2603000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 1983000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 1807000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 1551000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 3212000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": 2908000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 4409000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": 1673000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 2676000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": 9218000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 5486000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 1499000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 1257000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": -7838000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "OperatingLeasePayments",
      "taxonomy": "us-gaap",
      "label": "Operating lease payments",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash paid for operating lease liabilities during the period. It differs from lease expense recognized and excludes variable payments in some presentations.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": 1290000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 1401000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 1383000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 1169000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": 880000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": 0,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncreaseDecreaseInAccountsReceivable",
      "taxonomy": "us-gaap",
      "label": "Change in accounts receivable",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The cash flow adjustment for the change in receivables during the period. A positive value under this concept means receivables grew and reduced operating cash flow.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -11765000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": -21482000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 1244000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 29602000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -5692000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -5600000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -1501000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 6684000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -13683000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": -36393000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -6503000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": -13382000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": 8834000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": -22462000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": 22451000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "IncreaseDecreaseInInventories",
      "taxonomy": "us-gaap",
      "label": "Change in inventories",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "The cash flow adjustment for the change in inventories during the period. A positive value under this concept means inventory grew and reduced operating cash flow.",
      "observations": [
        {
          "start": "2023-03-01",
          "end": "2024-02-29",
          "val": -47184000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-03-01",
          "end": "2023-02-28",
          "val": 1928000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-03-01",
          "end": "2022-02-28",
          "val": 45115000,
          "accn": "0000950170-24-059558",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-05-14",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-03-01",
          "end": "2021-02-28",
          "val": 22735000,
          "accn": "0000950170-23-022204",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-05-15",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-03-01",
          "end": "2020-02-29",
          "val": -9571000,
          "accn": "0001564590-22-020425",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-05-16",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-03-01",
          "end": "2019-02-28",
          "val": -13912000,
          "accn": "0001564590-21-027539",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-05-13",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-03-01",
          "end": "2018-02-28",
          "val": -7150000,
          "accn": "0001564590-20-029359",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-15",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-03-01",
          "end": "2017-02-28",
          "val": 10227000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-03-01",
          "end": "2016-02-29",
          "val": -11285000,
          "accn": "0000807707-18-000034",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-05-14",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-03-01",
          "end": "2015-02-28",
          "val": 22973000,
          "accn": "0000807707-17-000011",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-05-15",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-03-01",
          "end": "2014-02-28",
          "val": -16609000,
          "accn": "0000807707-16-000051",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-05-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-03-01",
          "end": "2013-02-28",
          "val": 9982000,
          "accn": "0000807707-15-000006",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-05-14",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-03-01",
          "end": "2012-02-29",
          "val": -13269000,
          "accn": "0000807707-14-000008",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-05-15",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-03-01",
          "end": "2011-02-28",
          "val": 12007000,
          "accn": "0000807707-13-000022",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-05-15",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-03-01",
          "end": "2010-02-28",
          "val": -32849000,
          "accn": "0000807707-12-000013",
          "fy": 2011,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-05-14",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/60eff6fddf6e9029c6bfdb6992aa03414198b3f4aca5eefc14678f6539203e72.json.gz"
}
