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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": 274986000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "unit": "USD" }, { "end": "2024-12-31", "val": 38284000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "unit": "USD" }, { "end": "2023-12-31", "val": 167820000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023Q4I", "unit": "USD" }, { "end": "2022-12-31", "val": 12337000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2022Q4I", "unit": "USD" }, { "end": "2021-12-31", "val": 13262000, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2021Q4I", "unit": "USD" }, { "end": "2020-12-31", "val": 18369000, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2020Q4I", "unit": "USD" }, { "end": "2019-12-31", "val": 14733000, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2019Q4I", "unit": "USD" }, { "end": "2018-12-31", "val": 8066000, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2018Q4I", "unit": "USD" }, { "end": "2017-12-31", "val": 12261000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2017Q4I", "unit": "USD" }, { "end": "2016-12-31", "val": 209863000, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2016Q4I", "unit": "USD" }, { "end": "2015-12-31", "val": 60310000, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2015Q4I", "unit": "USD" }, { "end": "2014-12-31", "val": 6077000, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2014Q4I", "unit": "USD" }, { "end": "2013-12-31", "val": 54373000, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2013Q4I", "unit": "USD" }, { "end": "2012-12-31", "val": 10594000, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2012Q4I", "unit": "USD" }, { "end": "2011-12-31", "val": 5559000, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2011Q4I", "unit": "USD" }, { "end": "2010-12-31", "val": 10102000, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "frame": "CY2010Q4I", "unit": "USD" }, { "end": "2009-12-31", "val": 8262000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2009Q4I", "unit": "USD" }, { "end": "2008-12-31", "val": 6775000, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "frame": "CY2008Q4I", "unit": "USD" }, { "end": "2007-12-31", "val": 24638000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "frame": "CY2007Q4I", "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": "2020-01-01", "end": "2020-12-31", "val": 97374000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 191692000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 72301000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 68745000, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 28890000, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 178300000, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 40255000, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 93707000, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 20977000, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -119428000, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "unit": "USD" }, { "start": "2010-12-31", "end": "2011-12-31", "val": -119428000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 42760000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2009-12-31", "end": "2010-12-31", "val": 42760000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 56329000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2008-12-31", "end": "2009-12-31", "val": 56329000, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "frame": "CY2009", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 53965000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "frame": "CY2008", "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": 309933000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 330955000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 276274000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 265825000, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 249148000, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 238424000, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 228558000, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 180482000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 230121000, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 234270000, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 204008000, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 193885000, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 158979000, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 191838000, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 152143000, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "unit": "USD" }, { "start": "2010-12-31", "end": "2011-12-31", "val": 152143000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 156436000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2009-12-31", "end": "2010-12-31", "val": 156436000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 194817000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2008-12-31", "end": "2009-12-31", "val": 194817000, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "frame": "CY2009", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 180892000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "frame": "CY2008", "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": 763923000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 753267000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 684982000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 739030000, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 664446000, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 582354000, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 611821000, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 578112000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 612820000, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 574328000, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 625466000, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 586473000, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 523360000, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 508135000, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 492956000, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "unit": "USD" }, { "start": "2010-12-31", "end": "2011-12-31", "val": 512841000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 564475000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2009-12-31", "end": "2010-12-31", "val": 492234000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 767071000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2008-12-31", "end": "2009-12-31", "val": 737628000, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "frame": "CY2009", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 585145000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "frame": "CY2008", "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": "2025-01-01", "end": "2025-12-31", "val": 42074000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 75550000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 60179000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 154632000, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 107876000, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 70640000, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 113763000, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 60859000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 102840000, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 48364000, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "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": "2025-01-01", "end": "2025-12-31", "val": 216544000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": -169672000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 46264000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -183175000, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -50896000, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 91271000, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": -84363000, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 49555000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": -338546000, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": -155088000, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 157757000, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": -32492000, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 4590000, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -200547000, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 103701000, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "unit": "USD" }, { "start": "2010-12-31", "end": "2011-12-31", "val": 103701000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 324571000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2009-12-31", "end": "2010-12-31", "val": 324571000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 155746000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2008-12-31", "end": "2009-12-31", "val": 155746000, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "frame": "CY2009", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 92067000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "frame": "CY2008", "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": "2025-01-01", "end": "2025-12-31", "val": -289743000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": -291010000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": -169623000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -83457000, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -202969000, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": -325792000, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": -138015000, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": -232918000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": -89363000, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 71174000, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": -307532000, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": -209689000, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": -119790000, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 13744000, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -260387000, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "unit": "USD" }, { "start": "2010-12-31", "end": "2011-12-31", "val": -260387000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": -479167000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2009-12-31", "end": "2010-12-31", "val": -479167000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": -349076000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD" }, { "start": "2008-12-31", "end": "2009-12-31", "val": -349076000, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "frame": "CY2009", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": -290822000, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "frame": "CY2008", "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": 112516000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 112296000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 112178000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 112073000, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2022", "unit": "shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 111960000, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 111788000, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 111196000, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2019", "unit": "shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 103946000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 98969000, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 94502000, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2016", "unit": "shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 93914000, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2015", "unit": "shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 88092000, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2014", "unit": "shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 85167000, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2013", "unit": "shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 73454000, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2012", "unit": "shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 69382000, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "unit": "shares" }, { "start": "2010-12-31", "end": "2011-12-31", "val": 69382000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2011", "unit": "shares" }, { "start": "2009-12-31", "end": "2010-12-31", "val": 59611000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2010", "unit": "shares" }, { "start": "2008-12-31", "end": "2009-12-31", "val": 55930000, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "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": "2025-01-01", "end": "2025-12-31", "val": 113304000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 112899000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 112178000, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 112620000, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2022", "unit": "shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 112418000, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 112076000, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 111623000, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2019", "unit": "shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 104125000, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 99155000, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 94594000, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2016", "unit": "shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 97667000, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2015", "unit": "shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 88263000, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2014", "unit": "shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 85224000, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2013", "unit": "shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 73454000, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2012", "unit": "shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 69382000, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "unit": "shares" }, { "start": "2010-12-31", "end": "2011-12-31", "val": 69382000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2011", "unit": "shares" }, { "start": "2009-12-31", "end": "2010-12-31", "val": 59944000, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2010", "unit": "shares" }, { "start": "2008-12-31", "end": "2009-12-31", "val": 56407000, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "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": "2025-01-01", "end": "2025-12-31", "val": 1.35, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "USD/shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 1.23, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "USD/shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": -0.67, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "USD/shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 1.54, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2022", "unit": "USD/shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 0.68, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "USD/shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 0.87, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "USD/shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 1.72, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2019", "unit": "USD/shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 0.69, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "USD/shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 0.56, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "USD/shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 0.15, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2016", "unit": "USD/shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 1.74, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2015", "unit": "USD/shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 0.25, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2014", "unit": "USD/shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 0.83, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2013", "unit": "USD/shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -0.03, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2012", "unit": "USD/shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -1.97, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "unit": "USD/shares" }, { "start": "2010-12-31", "end": "2011-12-31", "val": -1.97, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2011", "unit": "USD/shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 0.43, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD/shares" }, { "start": "2009-12-31", "end": "2010-12-31", "val": 0.43, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2010", "unit": "USD/shares" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 0.7, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD/shares" }, { "start": "2008-12-31", "end": "2009-12-31", "val": 0.7, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "frame": "CY2009", "unit": "USD/shares" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 0.77, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "frame": "CY2008", "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": "2025-01-01", "end": "2025-12-31", "val": 1.34, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "USD/shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 1.23, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "USD/shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": -0.67, "accn": "0000860546-26-000011", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "USD/shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 1.53, "accn": "0000860546-25-000008", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-21", "frame": "CY2022", "unit": "USD/shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 0.68, "accn": "0000860546-24-000013", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "USD/shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 0.87, "accn": "0000860546-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "USD/shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 1.71, "accn": "0000860546-22-000013", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-22", "frame": "CY2019", "unit": "USD/shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 0.69, "accn": "0000860546-21-000010", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-12", "frame": "CY2018", "unit": "USD/shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 0.56, "accn": "0000860546-20-000007", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-19", "frame": "CY2017", "unit": "USD/shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 0.15, "accn": "0000860546-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-21", "frame": "CY2016", "unit": "USD/shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 1.74, "accn": "0000860546-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-16", "frame": "CY2015", "unit": "USD/shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 0.25, "accn": "0000860546-17-000006", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-17", "frame": "CY2014", "unit": "USD/shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 0.83, "accn": "0000860546-16-000064", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-25", "frame": "CY2013", "unit": "USD/shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -0.03, "accn": "0000860546-15-000009", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-18", "frame": "CY2012", "unit": "USD/shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -1.97, "accn": "0000860546-14-000008", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-03-03", "unit": "USD/shares" }, { "start": "2010-12-31", "end": "2011-12-31", "val": -1.97, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2011", "unit": "USD/shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 0.43, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD/shares" }, { "start": "2009-12-31", "end": "2010-12-31", "val": 0.43, "accn": "0000860546-13-000009", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-12", "frame": "CY2010", "unit": "USD/shares" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 0.7, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "unit": "USD/shares" }, { "start": "2008-12-31", "end": "2009-12-31", "val": 0.7, "accn": "0001047469-12-000848", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-10", "frame": "CY2009", "unit": "USD/shares" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 0.76, "accn": "0001047469-11-000781", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-11", "frame": "CY2008", "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. 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