{
  "schema": "canli.company-reference.v1",
  "cik": "0001092796",
  "name": "Smith & Wesson Brands, Inc.",
  "selection_policy": "extended-v22",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0001092796.json",
  "source_sha256": "3ece3f6d2c68721e7d5937869c9c48eea5bd433d21fdc819bb8fb65cbda6d568",
  "fetched_at": "2026-09-20T05:22:03.607Z",
  "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": "2026-04-30",
          "val": 512766000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 559612000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 577428000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 541294000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 497476000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 446388000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 729515000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 766789000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 745060000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 788036000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 619503000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 490925000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 381503000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 326989000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 261674000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 281497000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2026-04-30",
          "val": 136207000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 187158000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 177514000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 156671000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 136962000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 180004000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 342397000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 322345000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 322912000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 394874000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 311687000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 296555000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 214680000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 145690000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 148830000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 188765000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2026-04-30",
          "val": 376559000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 372454000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 399914000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 384623000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 360514000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 266384000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 387118000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 444444000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 422148000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 393162000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 307816000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 194370000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 166823000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 181299000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 112844000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 92732000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-04-30",
          "val": 158226000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010Q1I",
          "unit": "USD"
        },
        {
          "end": "2009-04-30",
          "val": 48275000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "frame": "CY2009Q1I",
          "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": "2026-04-30",
          "val": 28190000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 25231000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 60839000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 53556000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 120728000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 113017000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 125011000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 41015000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 48860000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 61549000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 191279000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 42222000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 68860000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 100487000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 56717000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 58292000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011Q1I",
          "unit": "USD"
        },
        {
          "end": "2010-04-30",
          "val": 39855000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010Q1I",
          "unit": "USD"
        },
        {
          "end": "2009-04-30",
          "val": 39822000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 18481000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 13425000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 41363000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 36876000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 194494000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 252049000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": -61230000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 18410000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 20128000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 127854000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 93958000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 49613000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 89305000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 78713000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 16105000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": -82769000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 32510000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "frame": "CY2009",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 114195000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": -7223000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 106739000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 16732000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 137814000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 315334000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 94736000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 57099000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 61643000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 123576000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 168557000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 114807000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 90206000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 98098000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 37372000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 38359000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 23092000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 23748000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 21605000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 90759000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 89565000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 23972000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 22052000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 12441000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 30895000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 18490000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 34876000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 29474000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 28199000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 53282000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 41421000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 13770000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 19837000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 16831000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 523845000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 474661000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 535833000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 479242000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 864126000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 1059195000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 529618000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 481336000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 606850000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 903188000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": -82996000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": -9212000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": -17966000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 5877000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": -105987000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": -303924000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 3380000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": -30468000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": -32168000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": -9564000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 12492000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 44612000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": -59217000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": -21418000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": -25558000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 11000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 15712000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": -28240000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": -19173000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": -81490000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": -89781000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": -24116000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": -23404000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": -13958000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": -34827000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": -42164000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": -243742000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": -31992000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": -186057000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": -62616000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": -32910000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": -13389000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": -19933000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": -38771000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2026-04-30",
          "val": 373738000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 532615000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 542414000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 523184000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 504640000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 325181000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 341716000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 402946000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 389146000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 369164000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 241310000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 147352000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 97739000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 8434000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": -70279000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": -86384000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 44420,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "shares"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 44484,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "shares"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 45813,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 45844,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 47227000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 54613000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 54983000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 54483000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 54061000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 55930000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 54765000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 53988000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 58668000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 65155000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 64788000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 60622000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 58195000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 44933,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "shares"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 44932,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "shares"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 46248,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "shares"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 46170,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "shares"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 47728000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "shares"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 55352000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "shares"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 55665000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "shares"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 55216000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "shares"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 54834000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "shares"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 56891000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "shares"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 55965000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "shares"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 55228000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "shares"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 60114000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "shares"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 66642000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "shares"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 67277000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "shares"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 63621000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "shares"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 65456000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 0.42,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD/shares"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 0.3,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD/shares"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 0.9,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 0.8,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 4.12,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 4.62,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": -1.11,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 0.34,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 0.37,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 2.29,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 1.72,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 0.92,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 1.52,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 1.21,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 0.25,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": -1.37,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 0.41,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD/shares"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 0.3,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD/shares"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 0.89,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD/shares"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 0.8,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD/shares"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 4.08,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD/shares"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 4.55,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD/shares"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": -1.1,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD/shares"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 0.33,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD/shares"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 0.37,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD/shares"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 2.25,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD/shares"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 1.68,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD/shares"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 0.9,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD/shares"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 1.49,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD/shares"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 1.18,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD/shares"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 0.25,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD/shares"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": -1.3,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 6589000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 5820000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 10356000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 11350000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 57892000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 74394000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 11522000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 9284000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": -2511000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 63452000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 51135000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 28905000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 48095000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 46500000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 12582000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 5454000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 14088000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2020-04-30",
          "val": 157417000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 183268000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 159125000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 149685000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 135405000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 133844000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 120440000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 86382000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 60528000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 62390000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 8350000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 7609000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 5683000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 5102000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 4536000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 4706000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 2357000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 6947000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 7815000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 8590000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 6472000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 5808000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 8212000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 4073000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 2484000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 1680000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 3284000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 29211000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 23884000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 47102000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 48407000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 251653000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 319632000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 50305000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 43517000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 27048000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 199939000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 158643000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 89628000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 150988000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 132834000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 44916000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 17791000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 40072000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2026-04-30",
          "val": 241403000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 277265000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 287331000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 291920000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 327597000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 268253000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 393455000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 298684000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 270364000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 318441000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 333231000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 197076000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 239171000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 229566000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 190714000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 203611000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2015-05-01",
          "end": "2016-04-30",
          "val": 13704000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 11330000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 12261000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 5781000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 7484000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 5683000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 4822000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2026-04-30",
          "val": 75367000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 66640000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 94378000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 87213000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 88949000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 125655000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 129971000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 111283000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 100682000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 151245000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 122592000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 81011000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 92543000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 82593000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 83345000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 122294000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2026-04-30",
          "val": 34570000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 26887000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 41831000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 36795000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 30042000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 57337000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 31476000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 35584000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 33617000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 53447000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 45513000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 32360000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 37688000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 31220000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 28618000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 40119000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2026-04-30",
          "val": 19024000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 19024000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 19024000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-02-01",
          "val": 19000000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 19024000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 19024000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-02-01",
          "val": 19000000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 19024000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-02-01",
          "val": 19000000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 19024000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 182269000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 191287000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 169017000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 76357000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 75426000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2015Q1I",
          "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": "2020-04-30",
          "val": 73324000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 91614000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 112534000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 141091000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 62924000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 73318000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 3123000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 3965000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 4532000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "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": "2026-04-30",
          "val": 40014000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "unit": "USD"
        },
        {
          "end": "2025-04-30",
          "val": 55868000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025Q1I",
          "unit": "USD"
        },
        {
          "end": "2024-04-30",
          "val": 59071000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2024Q1I",
          "unit": "USD"
        },
        {
          "end": "2023-04-30",
          "val": 55153000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2023Q1I",
          "unit": "USD"
        },
        {
          "end": "2022-04-30",
          "val": 62695000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2022Q1I",
          "unit": "USD"
        },
        {
          "end": "2021-04-30",
          "val": 67442000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2021Q1I",
          "unit": "USD"
        },
        {
          "end": "2020-04-30",
          "val": 60879000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2020Q1I",
          "unit": "USD"
        },
        {
          "end": "2019-04-30",
          "val": 84907000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2019Q1I",
          "unit": "USD"
        },
        {
          "end": "2018-04-30",
          "val": 56676000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2018Q1I",
          "unit": "USD"
        },
        {
          "end": "2017-04-30",
          "val": 108444000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2017Q1I",
          "unit": "USD"
        },
        {
          "end": "2016-04-30",
          "val": 57792000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2016Q1I",
          "unit": "USD"
        },
        {
          "end": "2015-04-30",
          "val": 55280000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2015Q1I",
          "unit": "USD"
        },
        {
          "end": "2014-04-30",
          "val": 55890000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 46088000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 48313000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 64753000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "frame": "CY2011Q1I",
          "unit": "USD"
        }
      ]
    },
    {
      "tag": "PaymentsForRepurchaseOfCommonStock",
      "taxonomy": "us-gaap",
      "label": "Common-stock repurchase payments",
      "kind": "duration",
      "unitKind": "money",
      "meaning": "Cash paid to reacquire common stock during the period. This is not an authorization limit or a direct measure of the net change in share count.",
      "observations": [
        {
          "start": "2025-05-01",
          "end": "2026-04-30",
          "val": 0,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 25468000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 10213000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 0,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 90000000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 110000000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 0,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 50052000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 30040000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 115887000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 20000000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 111892000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 103299000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 110991000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 106130000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 122911000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 129351000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 115384000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 102767000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 168704000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 175333000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 135169000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 105298000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 108117000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 85238000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 82990000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 86897000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 79391000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2014-04-30",
          "val": 86742000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2014Q1I",
          "unit": "USD"
        },
        {
          "end": "2013-04-30",
          "val": 62998000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2013Q1I",
          "unit": "USD"
        },
        {
          "end": "2012-04-30",
          "val": 55296000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2012Q1I",
          "unit": "USD"
        },
        {
          "end": "2011-04-30",
          "val": 51720000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 141103000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 127183000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 158093000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 154537000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 374564000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 448983000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 165689000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 146284000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 195752000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 375272000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 293812000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 194926000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 259105000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 218072000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 127906000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 104688000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 119463000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "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": "2025-05-01",
          "end": "2026-04-30",
          "val": 10304000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2025",
          "unit": "USD"
        },
        {
          "start": "2024-05-01",
          "end": "2025-04-30",
          "val": 9567000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2024",
          "unit": "USD"
        },
        {
          "start": "2023-05-01",
          "end": "2024-04-30",
          "val": 7258000,
          "accn": "0001193125-26-274254",
          "fy": 2026,
          "fp": "FY",
          "form": "10-K",
          "filed": "2026-06-17",
          "frame": "CY2023",
          "unit": "USD"
        },
        {
          "start": "2022-05-01",
          "end": "2023-04-30",
          "val": 7550000,
          "accn": "0000950170-25-088157",
          "fy": 2025,
          "fp": "FY",
          "form": "10-K",
          "filed": "2025-06-20",
          "frame": "CY2022",
          "unit": "USD"
        },
        {
          "start": "2021-05-01",
          "end": "2022-04-30",
          "val": 7262000,
          "accn": "0000950170-24-075584",
          "fy": 2024,
          "fp": "FY",
          "form": "10-K",
          "filed": "2024-06-20",
          "frame": "CY2021",
          "unit": "USD"
        },
        {
          "start": "2020-05-01",
          "end": "2021-04-30",
          "val": 7480000,
          "accn": "0000950170-23-029412",
          "fy": 2023,
          "fp": "FY",
          "form": "10-K",
          "filed": "2023-06-22",
          "frame": "CY2020",
          "unit": "USD"
        },
        {
          "start": "2019-05-01",
          "end": "2020-04-30",
          "val": 7364000,
          "accn": "0000950170-22-012043",
          "fy": 2022,
          "fp": "FY",
          "form": "10-K",
          "filed": "2022-06-23",
          "frame": "CY2019",
          "unit": "USD"
        },
        {
          "start": "2018-05-01",
          "end": "2019-04-30",
          "val": 8008000,
          "accn": "0001564590-21-033352",
          "fy": 2021,
          "fp": "FY",
          "form": "10-K",
          "filed": "2021-06-17",
          "frame": "CY2018",
          "unit": "USD"
        },
        {
          "start": "2017-05-01",
          "end": "2018-04-30",
          "val": 11361000,
          "accn": "0001564590-20-029954",
          "fy": 2020,
          "fp": "FY",
          "form": "10-K",
          "filed": "2020-06-19",
          "frame": "CY2017",
          "unit": "USD"
        },
        {
          "start": "2016-05-01",
          "end": "2017-04-30",
          "val": 10238000,
          "accn": "0001564590-19-022862",
          "fy": 2019,
          "fp": "FY",
          "form": "10-K",
          "filed": "2019-06-19",
          "frame": "CY2016",
          "unit": "USD"
        },
        {
          "start": "2015-05-01",
          "end": "2016-04-30",
          "val": 10005000,
          "accn": "0001564590-18-015882",
          "fy": 2018,
          "fp": "FY",
          "form": "10-K",
          "filed": "2018-06-20",
          "frame": "CY2015",
          "unit": "USD"
        },
        {
          "start": "2014-05-01",
          "end": "2015-04-30",
          "val": 6943000,
          "accn": "0001564590-17-013115",
          "fy": 2017,
          "fp": "FY",
          "form": "10-K",
          "filed": "2017-06-29",
          "frame": "CY2014",
          "unit": "USD"
        },
        {
          "start": "2013-05-01",
          "end": "2014-04-30",
          "val": 5648000,
          "accn": "0001564590-16-020629",
          "fy": 2016,
          "fp": "FY",
          "form": "10-K",
          "filed": "2016-06-16",
          "frame": "CY2013",
          "unit": "USD"
        },
        {
          "start": "2012-05-01",
          "end": "2013-04-30",
          "val": 4790000,
          "accn": "0001564590-15-005183",
          "fy": 2015,
          "fp": "FY",
          "form": "10-K",
          "filed": "2015-06-22",
          "frame": "CY2012",
          "unit": "USD"
        },
        {
          "start": "2011-05-01",
          "end": "2012-04-30",
          "val": 4544000,
          "accn": "0001193125-14-242483",
          "fy": 2014,
          "fp": "FY",
          "form": "10-K",
          "filed": "2014-06-19",
          "frame": "CY2011",
          "unit": "USD"
        },
        {
          "start": "2010-05-01",
          "end": "2011-04-30",
          "val": 4363000,
          "accn": "0001193125-13-270582",
          "fy": 2013,
          "fp": "FY",
          "form": "10-K",
          "filed": "2013-06-25",
          "frame": "CY2010",
          "unit": "USD"
        },
        {
          "start": "2009-05-01",
          "end": "2010-04-30",
          "val": 4185000,
          "accn": "0001193125-12-287910",
          "fy": 2012,
          "fp": "FY",
          "form": "10-K",
          "filed": "2012-06-28",
          "frame": "CY2009",
          "unit": "USD"
        }
      ]
    }
  ],
  "source_snapshot": "/company-data/sources/3ece3f6d2c68721e7d5937869c9c48eea5bd433d21fdc819bb8fb65cbda6d568.json.gz"
}
