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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. 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Restricted cash and longer-term investments may be reported separately.", "observations": [ { "end": "2025-12-31", "val": 30536972, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "unit": "USD" }, { "end": "2024-12-31", "val": 45263967, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2024Q4I", "unit": "USD" }, { "end": "2023-12-31", "val": 41185196, "accn": "0000832480-25-000006", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-26", "frame": "CY2023Q4I", "unit": "USD" }, { "end": "2022-12-31", "val": 45290385, "accn": "0001140361-24-016714", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022Q4I", "unit": "USD" }, { "end": "2021-12-31", "val": 30787278, "accn": "0000832480-23-000013", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-24", "frame": "CY2021Q4I", "unit": "USD" }, { "end": "2020-12-31", "val": 39025754, "accn": "0000832480-22-000005", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-25", "frame": "CY2020Q4I", "unit": "USD" }, { "end": "2019-12-31", "val": 28787629, "accn": "0000832480-21-000005", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-25", "frame": "CY2019Q4I", "unit": "USD" }, { "end": "2018-12-31", "val": 20150162, "accn": "0000832480-20-000005", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-20", "frame": "CY2018Q4I", "unit": "USD" }, { "end": "2017-12-31", "val": 25434199, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017Q4I", "unit": "USD" }, { "end": "2016-12-31", "val": 15156548, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2016Q4I", "unit": "USD" }, { "end": "2015-12-31", "val": 11822615, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2015Q4I", "unit": "USD" }, { "end": "2014-12-31", "val": 13977443, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2014Q4I", "unit": "USD" }, { "end": "2013-12-31", "val": 19838618, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2013Q4I", "unit": "USD" }, { "end": "2012-12-31", "val": 23321246, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2012Q4I", "unit": "USD" }, { "end": "2011-12-31", "val": 82925675, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2011Q4I", "unit": "USD" }, { "end": "2010-12-31", "val": 18483452, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2010Q4I", "unit": "USD" }, { "end": "2009-12-31", "val": 37492843, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "frame": "CY2009Q4I", "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": "2025-01-01", "end": "2025-12-31", "val": 17079919, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 50006085, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 2656610, "accn": "0000832480-25-000006", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-26", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 34258005, "accn": "0001140361-24-016714", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 9663063, "accn": "0000832480-23-000013", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-24", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 2088606, "accn": "0000832480-22-000005", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-25", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 16270777, "accn": "0000832480-21-000005", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-25", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 12391117, "accn": "0000832480-20-000005", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-20", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 4810149, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 1168025, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 916620, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 6976016, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 3252328, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 9265631, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 6316615, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 7596575, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "frame": "CY2010", "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": "2025-01-01", "end": "2025-12-31", "val": -6520014, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": -1568091, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": -9785373, "accn": "0000832480-25-000006", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-26", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -5334319, "accn": "0001140361-24-016714", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -12453435, "accn": "0000832480-23-000013", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-24", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": -13243386, "accn": "0000832480-22-000005", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-25", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": -6479467, "accn": "0000832480-21-000005", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-25", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": -5058079, "accn": "0000832480-20-000005", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-20", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": -13198248, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": -11376187, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": -11148536, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": -13640239, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": -10943800, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -10641220, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -10487204, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": -2986295, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "frame": "CY2010", "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": "2018-01-01", "end": "2018-12-31", "val": 0, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 0, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 0, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 0, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 1600000, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 0, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -17440, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 214475, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 139291, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "frame": "CY2010", "unit": "USD" } ] }, { "tag": "Revenues", "taxonomy": "us-gaap", "label": "Revenue", "kind": "duration", "meaning": "Revenue under this specific accounting concept. A missing value is not zero; filers can use other revenue concepts.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": 42345719, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 84913621, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 26306356, "accn": "0000832480-25-000006", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-26", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 69708835, "accn": "0001140361-24-016714", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 35613377, "accn": "0000832480-23-000013", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-24", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 27257904, "accn": "0000832480-22-000005", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-25", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 44195440, "accn": "0000832480-21-000005", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-25", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 41273187, "accn": "0000832480-20-000005", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-20", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 28734143, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 27837233, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 28767951, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 43624828, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 34365748, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 44834295, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 34963505, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 38443357, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "frame": "CY2010", "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. 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This differs from capital expenditure payments alone.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": -6887709, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 26500773, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 6903871, "accn": "0000832480-25-000006", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-26", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 26203334, "accn": "0001140361-24-016714", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -18054381, "accn": "0000832480-23-000013", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-24", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 26920845, "accn": "0000832480-22-000005", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-25", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 16281761, "accn": "0000832480-21-000005", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-25", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 2014674, "accn": "0000832480-20-000005", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-20", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 26985095, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 16663560, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 13584343, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 34302794, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 6185803, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -55967319, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 78850682, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": -11480532, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "frame": "CY2010", "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": "2025-12-31", "val": 198416066, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "unit": "USD" }, { "end": "2024-12-31", "val": 181336147, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2024Q4I", "unit": "USD" }, { "end": "2023-12-31", "val": 131330062, "accn": "0000832480-25-000006", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-26", "frame": "CY2023Q4I", "unit": "USD" }, { "end": "2022-12-31", "val": 131989352, "accn": "0001140361-24-016714", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022Q4I", "unit": "USD" }, { "end": "2021-12-31", "val": 97731347, "accn": "0000832480-23-000013", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-24", "frame": "CY2021Q4I", "unit": "USD" }, { "end": "2020-12-31", "val": 88068284, "accn": "0000832480-22-000005", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-25", "frame": "CY2020Q4I", "unit": "USD" }, { "end": "2019-12-31", "val": 85979678, "accn": "0000832480-21-000005", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-25", "frame": "CY2019Q4I", "unit": "USD" }, { "end": "2018-12-31", "val": 69708901, "accn": "0000832480-20-000005", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-20", "frame": "CY2018Q4I", "unit": "USD" }, { "end": "2017-12-31", "val": 39040456, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017Q4I", "unit": "USD" }, { "end": "2016-12-31", "val": 34230307, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2016Q4I", "unit": "USD" }, { "end": "2015-12-31", "val": 33062282, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2015Q4I", "unit": "USD" }, { "end": "2014-12-31", "val": 32145662, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2014Q4I", "unit": "USD" }, { "end": "2013-12-31", "val": 25169646, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2013Q4I", "unit": "USD" }, { "end": "2012-12-31", "val": 21917318, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2012Q4I", "unit": "USD" }, { "end": "2011-12-31", "val": 12651687, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2011Q4I", "unit": "USD" }, { "end": "2010-12-31", "val": 6335072, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "frame": "CY2010Q4I", "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": "2025-01-01", "end": "2025-12-31", "val": 3150603, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2025", "unit": "shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 3165541, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2024", "unit": "shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 3176757, "accn": "0000832480-25-000006", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-26", "frame": "CY2023", "unit": "shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 3167719, "accn": "0001140361-24-016714", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022", "unit": "shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 3171919, "accn": "0000832480-23-000013", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-24", "frame": "CY2021", "unit": "shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 3233773, "accn": "0000832480-22-000005", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-25", "frame": "CY2020", "unit": "shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 3285813, "accn": "0000832480-21-000005", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-25", "frame": "CY2019", "unit": "shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 3307448, "accn": "0000832480-20-000005", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-20", "frame": "CY2018", "unit": "shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 3346774, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017", "unit": "shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 3537394, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2016", "unit": "shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 3704322, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2015", "unit": "shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 3750239, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2014", "unit": "shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 3787913, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2013", "unit": "shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 3809639, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2012", "unit": "shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 3824444, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2011", "unit": "shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 3874012, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "frame": "CY2010", "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": "2025-01-01", "end": "2025-12-31", "val": 3154183, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2025", "unit": "shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 3165541, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2024", "unit": "shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 3176757, "accn": "0000832480-25-000006", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-26", "frame": "CY2023", "unit": "shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 3167719, "accn": "0001140361-24-016714", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022", "unit": "shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 3171919, "accn": "0000832480-23-000013", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-24", "frame": "CY2021", "unit": "shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 3233773, "accn": "0000832480-22-000005", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-25", "frame": "CY2020", "unit": "shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 3285813, "accn": "0000832480-21-000005", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-25", "frame": "CY2019", "unit": "shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 3307448, "accn": "0000832480-20-000005", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-20", "frame": "CY2018", "unit": "shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 3346774, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017", "unit": "shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 3537394, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2016", "unit": "shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 3704322, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2015", "unit": "shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 3750239, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2014", "unit": "shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 3787913, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2013", "unit": "shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 3809639, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2012", "unit": "shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 3824444, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2011", "unit": "shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 3874012, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "frame": "CY2010", "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": "2025-01-01", "end": "2025-12-31", "val": 5.42, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2025", "unit": "USD/shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 15.8, "accn": "0000832480-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-03-25", "frame": "CY2024", "unit": "USD/shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 0.84, "accn": "0000832480-25-000006", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-03-26", "frame": "CY2023", "unit": "USD/shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 10.81, "accn": "0001140361-24-016714", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-04-01", "frame": "CY2022", "unit": "USD/shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 3.05, "accn": "0000832480-23-000013", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-03-24", "frame": "CY2021", "unit": "USD/shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 0.65, "accn": "0000832480-22-000005", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-03-25", "frame": "CY2020", "unit": "USD/shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 4.95, "accn": "0000832480-21-000005", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-03-25", "frame": "CY2019", "unit": "USD/shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 3.75, "accn": "0000832480-20-000005", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-03-20", "frame": "CY2018", "unit": "USD/shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 1.44, "accn": "0000832480-19-000006", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-03-26", "frame": "CY2017", "unit": "USD/shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 0.33, "accn": "0000832480-18-000008", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-26", "frame": "CY2016", "unit": "USD/shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 0.25, "accn": "0000832480-17-000005", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-28", "frame": "CY2015", "unit": "USD/shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 1.86, "accn": "0000832480-16-000038", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-03-25", "frame": "CY2014", "unit": "USD/shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 0.86, "accn": "0000832480-15-000006", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-03-25", "frame": "CY2013", "unit": "USD/shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 2.43, "accn": "0000832480-14-000004", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-25", "frame": "CY2012", "unit": "USD/shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 1.65, "accn": "0000832480-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-03-28", "frame": "CY2011", "unit": "USD/shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 1.96, "accn": "0000832480-12-000021", "fy": 2011, "fp": "FY", "form": "10-K/A", "filed": "2012-05-29", "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. 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