{ "schema": "canli.company-reference.v1", "cik": "0000067716", "name": "MDU RESOURCES GROUP INC", "selection_policy": "extended-v22", "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000067716.json", "source_sha256": "aba90de43a563560fa7dd3138b4ba431568f14cd80b128a0899972a991311c67", "fetched_at": "2026-09-19T14:49:52.662Z", "policy": "Latest-filed annual-report facts per unit and reporting period at capture time. Duration facts cover 300 to 400 days. This selection can include restatements and is not a point-in-time backtest dataset. Missing concepts are omitted, never zero-filled. Values retain original units and are not currency converted. Extended concepts require compatible unit shapes and at least three reporting ends with changing values within one unit. Constant or incompatible added histories are omitted.", "claim_boundary": "Public company accounting reference, not market prices, returns, an investment recommendation, or ALPHAC performance. Validate a separately constructed return series with the validation API; accounting values are not returns.", "concepts": [ { "tag": "Assets", "taxonomy": "us-gaap", "label": "Total assets", "kind": "instant", "meaning": "Resources recognized on the balance sheet. Book assets are not the market value of the business.", "observations": [ { "end": "2025-12-31", "val": 7622206000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "unit": "USD" }, { "end": "2024-12-31", "val": 7038818000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024Q4I", "unit": "USD" }, { "end": "2023-12-31", "val": 7833159000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023Q4I", "unit": "USD" }, { "end": "2022-12-31", "val": 9660781000, "accn": "0000067716-25-000016", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-20", "frame": "CY2022Q4I", "unit": "USD" }, { "end": "2021-12-31", "val": 8910435000, "accn": "0000067716-24-000017", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021Q4I", "unit": "USD" }, { "end": "2020-12-31", "val": 8053372000, "accn": "0000067716-23-000017", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020Q4I", "unit": "USD" }, { "end": "2019-12-31", "val": 7683059000, "accn": "0000067716-22-000012", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-23", "frame": "CY2019Q4I", "unit": "USD" }, { "end": "2018-12-31", "val": 6988110000, "accn": "0000067716-21-000007", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-19", "frame": "CY2018Q4I", "unit": "USD" }, { "end": "2017-12-31", "val": 6334666000, "accn": "0000067716-20-000010", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-21", "frame": "CY2017Q4I", "unit": "USD" }, { "end": "2016-12-31", "val": 6284467000, "accn": "0000067716-19-000019", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-22", "frame": "CY2016Q4I", "unit": "USD" }, { "end": "2015-12-31", "val": 6565154000, "accn": "0000067716-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-23", "frame": "CY2015Q4I", "unit": "USD" }, { "end": "2014-12-31", "val": 7805405000, "accn": "0000067716-17-000017", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-24", "frame": "CY2014Q4I", "unit": "USD" }, { "end": "2013-12-31", "val": 7073447000, "accn": "0000067716-16-000116", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-19", "frame": "CY2013Q4I", "unit": "USD" }, { "end": "2012-12-31", "val": 6682491000, "accn": "0000067716-15-000027", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012Q4I", "unit": "USD" }, { "end": "2011-12-31", "val": 6556125000, "accn": "0000067716-14-000029", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-21", "frame": "CY2011Q4I", "unit": "USD" }, { "end": "2010-12-31", "val": 6303549000, "accn": "0000067716-13-000021", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-28", "frame": "CY2010Q4I", "unit": "USD" }, { "end": "2009-12-31", "val": 5990952000, "accn": "0000067716-12-000031", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-24", "frame": "CY2009Q4I", "unit": "USD" }, { "end": "2008-12-31", "val": 6587845000, "accn": "0000067716-10-000030", "fy": 2009, "fp": "FY", "form": "10-K", "filed": "2010-02-17", "frame": "CY2008Q4I", "unit": "USD" } ] }, { "tag": "StockholdersEquity", "taxonomy": "us-gaap", "label": "Stockholders equity", "kind": "instant", "meaning": "The reported residual interest after liabilities. 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It is not automatically comparable to older revenue tags.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": 1862918000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 1752995000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 1805807000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 1754158000, "accn": "0000067716-25-000016", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-20", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 3402191000, "accn": "0000067716-24-000017", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "USD" } ] }, { "tag": "NetCashProvidedByUsedInFinancingActivities", "taxonomy": "us-gaap", "label": "Financing cash flow", "kind": "duration", "unitKind": "money", "meaning": "Net cash from financing activities, including borrowing, repayments and transactions with owners. 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This differs from capital expenditure payments alone.", "observations": [ { "start": "2025-01-01", "end": "2025-12-31", "val": -780859000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "USD" }, { "start": "2024-01-01", "end": "2024-12-31", "val": -552685000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "USD" }, { "start": "2023-01-01", "end": "2023-12-31", "val": -540791000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "USD" }, { "start": "2022-01-01", "end": "2022-12-31", "val": -638881000, "accn": "0000067716-25-000016", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-20", "frame": "CY2022", "unit": "USD" }, { "start": "2021-01-01", "end": "2021-12-31", "val": -885878000, "accn": "0000067716-24-000017", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "USD" }, { "start": "2020-01-01", "end": "2020-12-31", "val": -630243000, "accn": "0000067716-23-000017", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "USD" }, { "start": "2019-01-01", "end": "2019-12-31", "val": -603861000, "accn": "0000067716-22-000012", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-23", "frame": "CY2019", "unit": "USD" }, { "start": "2018-01-01", "end": "2018-12-31", "val": -710907000, "accn": "0000067716-21-000007", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-19", "frame": "CY2018", "unit": "USD" }, { "start": "2017-01-01", "end": "2017-12-31", "val": -214168000, "accn": "0000067716-20-000010", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-21", "frame": "CY2017", "unit": "USD" }, { "start": "2016-01-01", "end": "2016-12-31", "val": -305095000, "accn": "0000067716-19-000019", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-22", "frame": "CY2016", "unit": "USD" }, { "start": "2015-01-01", "end": "2015-12-31", "val": -382453000, "accn": "0000067716-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-23", "frame": "CY2015", "unit": "USD" }, { "start": "2014-01-01", "end": "2014-12-31", "val": -904190000, "accn": "0000067716-17-000017", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-24", "frame": "CY2014", "unit": "USD" }, { "start": "2013-01-01", "end": "2013-12-31", "val": -782661000, "accn": "0000067716-16-000116", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-19", "frame": "CY2013", "unit": "USD" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -887952000, "accn": "0000067716-15-000027", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "USD" }, { "start": "2011-01-01", "end": "2011-12-31", "val": -464545000, "accn": "0000067716-14-000029", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-21", "frame": "CY2011", "unit": "USD" }, { "start": "2010-01-01", "end": "2010-12-31", "val": -407944000, "accn": "0000067716-13-000021", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-28", "frame": "CY2010", "unit": "USD" }, { "start": "2009-01-01", "end": "2009-12-31", "val": -432146000, "accn": "0000067716-12-000031", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-24", "frame": "CY2009", "unit": "USD" }, { "start": "2008-01-01", "end": "2008-12-31", "val": -1107321000, "accn": "0000067716-11-000021", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-23", "frame": "CY2008", "unit": "USD" }, { "start": "2007-01-01", "end": "2007-12-31", "val": -342264000, "accn": "0000067716-10-000030", "fy": 2009, "fp": "FY", "form": "10-K", "filed": "2010-02-17", "frame": "CY2007", "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": 1108894000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "unit": "USD" }, { "end": "2024-12-31", "val": 1029699000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024Q4I", "unit": "USD" }, { "end": "2023-12-31", "val": 1253693000, "accn": "0000067716-25-000016", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-20", "frame": "CY2023Q4I", "unit": "USD" }, { "end": "2022-12-31", "val": 1951138000, "accn": "0000067716-24-000017", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2022Q4I", "unit": "USD" }, { "end": "2021-12-31", "val": 1762410000, "accn": "0000067716-23-000017", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2021Q4I", "unit": "USD" }, { "end": "2020-12-31", "val": 1558363000, "accn": "0000067716-22-000012", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-23", "frame": "CY2020Q4I", "unit": "USD" }, { "end": "2019-12-31", "val": 1336647000, "accn": "0000067716-21-000007", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-19", "frame": "CY2019Q4I", "unit": "USD" }, { "end": "2018-12-31", "val": 1163602000, "accn": "0000067716-20-000010", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-21", "frame": "CY2018Q4I", "unit": "USD" }, { "end": "2017-12-31", "val": 1040748000, "accn": "0000067716-19-000019", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-22", "frame": "CY2017Q4I", "unit": "USD" }, { "end": "2016-12-31", "val": 912282000, "accn": "0000067716-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-23", "frame": "CY2016Q4I", "unit": "USD" }, { "end": "2015-12-31", "val": 996355000, "accn": "0000067716-17-000017", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-24", "frame": "CY2015Q4I", "unit": "USD" }, { "end": "2014-12-31", "val": 1762827000, "accn": "0000067716-16-000116", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-19", "frame": "CY2014Q4I", "unit": "USD" }, { "end": "2013-12-31", "val": 1603130000, "accn": "0000067716-15-000027", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2013Q4I", "unit": "USD" }, { "end": "2012-12-31", "val": 1457146000, "accn": "0000067716-14-000029", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-21", "frame": "CY2012Q4I", "unit": "USD" }, { "end": "2011-12-31", "val": 1586123000, "accn": "0000067716-13-000021", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-28", "frame": "CY2011Q4I", "unit": "USD" }, { "end": "2010-12-31", "val": 1497439000, "accn": "0000067716-12-000031", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-24", "frame": "CY2010Q4I", "unit": "USD" }, { "end": "2009-12-31", "val": 1377039000, "accn": "0000067716-11-000021", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-23", "frame": "CY2009Q4I", "unit": "USD" }, { "end": "2008-12-31", "val": 1616830000, "accn": "0000067716-10-000030", "fy": 2009, "fp": "FY", "form": "10-K", "filed": "2010-02-17", "frame": "CY2008Q4I", "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. 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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": 205300000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2025", "unit": "shares" }, { "start": "2024-01-01", "end": "2024-12-31", "val": 204653000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2024", "unit": "shares" }, { "start": "2023-01-01", "end": "2023-12-31", "val": 203938000, "accn": "0000067716-26-000014", "fy": 2025, "fp": "FY", "form": "10-K", "filed": "2026-02-20", "frame": "CY2023", "unit": "shares" }, { "start": "2022-01-01", "end": "2022-12-31", "val": 203462000, "accn": "0000067716-25-000016", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-20", "frame": "CY2022", "unit": "shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 202383000, "accn": "0000067716-24-000017", "fy": 2023, "fp": "FY", "form": "10-K", "filed": "2024-02-22", "frame": "CY2021", "unit": "shares" }, { "start": "2020-01-01", "end": "2020-12-31", "val": 200571000, "accn": "0000067716-23-000017", "fy": 2022, "fp": "FY", "form": "10-K", "filed": "2023-02-24", "frame": "CY2020", "unit": "shares" }, { "start": "2019-01-01", "end": "2019-12-31", "val": 198626000, "accn": "0000067716-22-000012", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-23", "frame": "CY2019", "unit": "shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 196150000, "accn": "0000067716-21-000007", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-19", "frame": "CY2018", "unit": "shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 195687000, "accn": "0000067716-20-000010", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-21", "frame": "CY2017", "unit": "shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 195618000, "accn": "0000067716-19-000019", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-22", "frame": "CY2016", "unit": "shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": 194986000, "accn": "0000067716-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-23", "frame": "CY2015", "unit": "shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 192587000, "accn": "0000067716-17-000017", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-24", "frame": "CY2014", "unit": "shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 189693000, "accn": "0000067716-16-000116", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-19", "frame": "CY2013", "unit": "shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": 188826000, "accn": "0000067716-15-000027", "fy": 2014, "fp": "FY", "form": "10-K", "filed": "2015-02-20", "frame": "CY2012", "unit": "shares" }, { "start": "2011-01-01", "end": "2011-12-31", "val": 188905000, "accn": "0000067716-14-000029", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-21", "frame": "CY2011", "unit": "shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 188229000, "accn": "0000067716-13-000021", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-28", "frame": "CY2010", "unit": "shares" }, { "start": "2009-01-01", "end": "2009-12-31", "val": 185175000, "accn": "0000067716-12-000031", "fy": 2011, "fp": "FY", "form": "10-K", "filed": "2012-02-24", "frame": "CY2009", "unit": "shares" }, { "start": "2008-01-01", "end": "2008-12-31", "val": 183807, "accn": "0000067716-11-000021", "fy": 2010, "fp": "FY", "form": "10-K", "filed": "2011-02-23", "frame": "CY2008", "unit": "shares" }, { "start": "2007-01-01", "end": "2007-12-31", "val": 182902, "accn": "0000067716-10-000030", "fy": 2009, "fp": "FY", "form": "10-K", "filed": "2010-02-17", "frame": "CY2007", "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": 0.93, "accn": "0000067716-26-000014", "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": 1.38, "accn": "0000067716-26-000014", "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": 2.04, "accn": "0000067716-26-000014", "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": 1.81, "accn": "0000067716-25-000016", "fy": 2024, "fp": "FY", "form": "10-K", "filed": "2025-02-20", "frame": "CY2022", "unit": "USD/shares" }, { "start": "2021-01-01", "end": "2021-12-31", "val": 1.87, "accn": "0000067716-24-000017", "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": 1.95, "accn": "0000067716-23-000017", "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": 1.69, "accn": "0000067716-22-000012", "fy": 2021, "fp": "FY", "form": "10-K", "filed": "2022-02-23", "frame": "CY2019", "unit": "USD/shares" }, { "start": "2018-01-01", "end": "2018-12-31", "val": 1.39, "accn": "0000067716-21-000007", "fy": 2020, "fp": "FY", "form": "10-K", "filed": "2021-02-19", "frame": "CY2018", "unit": "USD/shares" }, { "start": "2017-01-01", "end": "2017-12-31", "val": 1.44, "accn": "0000067716-20-000010", "fy": 2019, "fp": "FY", "form": "10-K", "filed": "2020-02-21", "frame": "CY2017", "unit": "USD/shares" }, { "start": "2016-01-01", "end": "2016-12-31", "val": 0.33, "accn": "0000067716-19-000019", "fy": 2018, "fp": "FY", "form": "10-K", "filed": "2019-02-22", "frame": "CY2016", "unit": "USD/shares" }, { "start": "2015-01-01", "end": "2015-12-31", "val": -3.2, "accn": "0000067716-18-000013", "fy": 2017, "fp": "FY", "form": "10-K", "filed": "2018-02-23", "frame": "CY2015", "unit": "USD/shares" }, { "start": "2014-01-01", "end": "2014-12-31", "val": 1.55, "accn": "0000067716-17-000017", "fy": 2016, "fp": "FY", "form": "10-K", "filed": "2017-02-24", "frame": "CY2014", "unit": "USD/shares" }, { "start": "2013-01-01", "end": "2013-12-31", "val": 1.47, "accn": "0000067716-16-000116", "fy": 2015, "fp": "FY", "form": "10-K", "filed": "2016-02-19", "frame": "CY2013", "unit": "USD/shares" }, { "start": "2012-01-01", "end": "2012-12-31", "val": -0.01, "accn": "0000067716-15-000027", "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": 1.12, "accn": "0000067716-14-000029", "fy": 2013, "fp": "FY", "form": "10-K", "filed": "2014-02-21", "frame": "CY2011", "unit": "USD/shares" }, { "start": "2010-01-01", "end": "2010-12-31", "val": 1.28, "accn": "0000067716-13-000021", "fy": 2012, "fp": "FY", "form": "10-K", "filed": "2013-02-28", "frame": "CY2010", "unit": "USD/shares" } ] }, { "tag": "EarningsPerShareDiluted", "taxonomy": "us-gaap", "label": "Diluted earnings per share", "kind": "duration", "unitKind": "per-share", "meaning": "Reported earnings or loss per share under dilution rules. Antidilutive instruments may be excluded. 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