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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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It is an accounting amount, not market capitalization.", "observations": [ { "end": "2025-12-31", "val": 1716596000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "unit": "USD" }, { "end": "2024-12-31", "val": 1390600000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024Q4I", "unit": "USD" }, { "end": "2023-12-31", "val": 1310911000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2023Q4I", "unit": "USD" }, { "end": "2022-12-31", "val": 1168473000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2022Q4I", "unit": "USD" }, { "end": "2021-12-31", "val": 1116077000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2021Q4I", "unit": "USD" }, { "end": "2020-12-31", "val": 816548000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2020Q4I", "unit": "USD" }, { "end": "2019-12-31", "val": 776538000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2019Q4I", "unit": "USD" }, { "end": "2018-12-31", "val": 712663000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2018Q4I", "unit": "USD" }, { "end": "2017-12-31", "val": 786416000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2017Q4I", "unit": "USD" }, { "end": "2016-12-31", "val": 631604000, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2016Q4I", "unit": "USD" }, { "end": "2015-12-31", "val": 604758000, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2015Q4I", "unit": "USD" }, { "end": "2015-09-30", "val": 601965000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2015Q3I", "unit": "USD" }, { "end": "2015-06-30", "val": 611606000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2015Q2I", "unit": "USD" }, { "end": "2015-03-31", "val": 614221000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2015Q1I", "unit": "USD" }, { "end": "2014-12-31", "val": 681001000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2014Q4I", "unit": "USD" }, { "end": "2014-09-30", "val": 800983000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2014Q3I", "unit": "USD" }, { "end": "2014-06-30", "val": 850775000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2014Q2I", "unit": "USD" }, { "end": "2014-03-31", "val": 836068000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2014Q1I", "unit": "USD" }, { "end": "2013-12-31", "val": 855236000, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2013Q4I", "unit": "USD" }, { "end": "2012-12-31", "val": 992967000, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2012Q4I", "unit": "USD" }, { "end": "2011-12-31", "val": 906925000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2011Q4I", "unit": "USD" }, { "end": "2010-12-31", "val": 1428295000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD" }, { "end": "2009-12-31", "val": 1400514000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "frame": "CY2009Q4I", "unit": "USD" }, { "end": "2008-12-31", "val": 1058776000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "frame": "CY2008Q4I", "unit": "USD" }, { "end": "2007-12-31", "val": 790435000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "frame": "CY2007Q4I", "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. 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Check the filing for attribution, exceptional items and discontinued operations before comparing companies.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": 301055000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 239105000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 96923000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -9732000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -81255000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": -57955000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 49006000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": -99250000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 57298000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 31770000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 12678000, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": -23670000, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": -153153000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 108275000, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -510157000, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 104770000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": -2249000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 19811000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "frame": "CY2008", "unit": "USD" } ] }, { "tag": "NetCashProvidedByUsedInOperatingActivities", "taxonomy": "us-gaap", "label": "Operating cash flow", "kind": "duration", "meaning": "Cash generated or used by operating activities. 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This taxonomy concept does not capture every form of investment or acquisition.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": 22891000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 30562000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 26884000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 19747000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 34682000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 46208000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 60749000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 59952000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 49495000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 43543000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 43918000, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 44495000, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 60020000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 50543000, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 60076000, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 62822000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 52906000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 63430000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "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": 2367194000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 2440837000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 2173633000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 1795564000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 1981572000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 2173350000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 2502470000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 2376117000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 2018197000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 2013186000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "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": -97462000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 579573000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": -3508000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -18737000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -152887000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": -11576000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": -97519000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 395821000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 301959000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -77528000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -209453000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": -148637000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": -114121000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": -63376000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "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": -349652000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": -63412000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": -23308000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 40516000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -34884000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": -41036000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": -48180000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": -862658000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": -148179000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -125445000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -78741000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": -56274000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": -53994000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": -67075000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "frame": "CY2008", "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": 111751000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "unit": "USD" }, { "end": "2024-12-31", "val": -189304000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024Q4I", "unit": "USD" }, { "end": "2023-12-31", "val": -428409000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2023Q4I", "unit": "USD" }, { "end": "2022-12-31", "val": -525332000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2022Q4I", "unit": "USD" }, { "end": "2021-12-31", "val": -515600000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2021Q4I", "unit": "USD" }, { "end": "2020-12-31", "val": -434345000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2020Q4I", "unit": "USD" }, { "end": "2019-12-31", "val": -376390000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2019Q4I", "unit": "USD" }, { "end": "2018-12-31", "val": -425396000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2018Q4I", "unit": "USD" }, { "end": "2017-12-31", "val": -337873000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2017Q4I", "unit": "USD" }, { "end": "2016-12-31", "val": -409536000, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2016Q4I", "unit": "USD" }, { "end": "2015-12-31", "val": -441306000, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2015Q4I", "unit": "USD" }, { "end": "2015-09-30", "val": -450292000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2015Q3I", "unit": "USD" }, { "end": "2015-06-30", "val": -462932000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2015Q2I", "unit": "USD" }, { "end": "2015-03-31", "val": -448586000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2015Q1I", "unit": "USD" }, { "end": "2014-12-31", "val": -453984000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2014Q4I", "unit": "USD" }, { "end": "2014-09-30", "val": -406943000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2014Q3I", "unit": "USD" }, { "end": "2014-06-30", "val": -410528000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2014Q2I", "unit": "USD" }, { "end": "2014-03-31", "val": -431364000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2014Q1I", "unit": "USD" }, { "end": "2013-12-31", "val": -413671000, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2013Q4I", "unit": "USD" }, { "end": "2012-12-31", "val": -266862000, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2012Q4I", "unit": "USD" }, { "end": "2011-12-31", "val": -375137000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2011Q4I", "unit": "USD" }, { "end": "2010-12-31", "val": 135020000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD" }, { "end": "2009-12-31", "val": 30250000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "frame": "CY2009Q4I", "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": 45492000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 45368000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 45421000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 45101000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 44301000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 40253000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 39556000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 39244000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 38655000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 38207000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2016", "unit": "shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 38224000, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2015", "unit": "shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 39184000, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2014", "unit": "shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 39281000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2013", "unit": "shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 39625000, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 40612000, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2011", "unit": "shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 40337000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "shares" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 38539000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "shares" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 33096000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "frame": "CY2008", "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": 46323000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 46187000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 45836000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 45101000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 44301000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 40253000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 39980000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 39244000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 39387000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 38643000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2016", "unit": "shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 38506000, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2015", "unit": "shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 39184000, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2014", "unit": "shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 39281000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2013", "unit": "shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 39934000, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 40612000, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2011", "unit": "shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 40947000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "shares" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 38539000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "shares" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 34951000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "frame": "CY2008", "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": 6.62, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD/shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 5.27, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD/shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 2.13, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD/shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -0.22, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD/shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -1.83, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD/shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": -1.44, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD/shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 1.24, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD/shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": -2.53, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD/shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 1.48, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD/shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 0.83, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2016", "unit": "USD/shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 0.33, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2015", "unit": "USD/shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": -0.6, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2014", "unit": "USD/shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": -3.9, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2013", "unit": "USD/shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 2.73, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "USD/shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -12.56, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2011", "unit": "USD/shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 2.6, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "USD/shares" }, { "start": "2009-01-01", "end": "2009-12-31", "val": -0.06, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD/shares" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 0.6, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "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": 6.5, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD/shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 5.18, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD/shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 2.11, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD/shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -0.22, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD/shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -1.83, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD/shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": -1.44, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD/shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 1.23, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD/shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": -2.53, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD/shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 1.45, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD/shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 0.82, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2016", "unit": "USD/shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 0.33, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2015", "unit": "USD/shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": -0.6, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2014", "unit": "USD/shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": -3.9, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2013", "unit": "USD/shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 2.71, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "USD/shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -12.56, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2011", "unit": "USD/shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 2.56, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "USD/shares" }, { "start": "2009-01-01", "end": "2009-12-31", "val": -0.06, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD/shares" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 0.57, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "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. This accounting expense differs from cash taxes paid.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": 38932000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 43407000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 29068000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -6196000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -45512000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 238000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 20617000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": -12570000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 74326000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 49574000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 22099000, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 4035000, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": -2466000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 25995000, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 4430000, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 15974000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": -43825000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": -1229000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "frame": "CY2008", "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. 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It is an expense category, not a substitute for total operating expenses.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": 352965000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 339069000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 312779000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 290453000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 300520000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 276920000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 346872000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 423210000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 325264000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 319571000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2016", "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": "2025-01-01", "end": "2025-12-31", "val": 207041000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 215034000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 208688000, "accn": "0000780571-26-000033", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-17", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 185098000, "accn": "0000780571-25-000007", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-25", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 197235000, "accn": "0000780571-24-000006", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-26", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 194101000, "accn": "0000780571-23-000010", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-27", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 202200000, "accn": "0000780571-22-000004", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-28", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 207905000, "accn": "0000780571-21-000009", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-24", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 169407000, "accn": "0000780571-20-000004", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-27", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 167766000, "accn": "0000780571-19-000007", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-28", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 162334000, "accn": "0000780571-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-03-01", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 175500000, "accn": "0000780571-17-000003", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-03-01", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 175420000, "accn": "0000780571-16-000059", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-06-30", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 178653000, "accn": "0000780571-15-000010", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 161305000, "accn": "0000780571-14-000014", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-26", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 139166000, "accn": "0000780571-13-000004", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-22", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 122314000, "accn": "0000780571-12-000006", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-17", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 120699000, "accn": "0001193125-11-045950", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-25", "frame": "CY2008", "unit": "USD" } ] } ], "source_snapshot": "/company-data/sources/d345776001a003e0f59c256be520d916728f9a316a66d97b7d560599e9ed2880.json.gz" }