{
  "ticker": "LNT",
  "name": "ALLIANT ENERGY CORP",
  "cik": "0000352541",
  "sic": "4931",
  "sic_description": "Electric & Other Services Combined",
  "source": "SEC XBRL companyfacts",
  "source_url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000352541.json",
  "as_of": "2026-02-20",
  "note": "Verified SEC companyfacts-derived facts; derived metrics (margins, ratios, free cash flow) are computed from those facts. Descriptive data, not investment advice.",
  "annual": [
    {
      "metric_id": "revenue",
      "label": "Revenue",
      "concept": "Revenues",
      "unit": "USD",
      "derived": false,
      "source_concepts": [
        "us-gaap:Revenues"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 3320000000.0,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 3382200000.0,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 3534000000.0,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 3648000000.0,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 3416000000.0,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 3669000000.0,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 4205000000.0,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 4027000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 3981000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 4362000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "net_income",
      "label": "Net income",
      "concept": "NetIncomeLoss",
      "unit": "USD",
      "derived": false,
      "source_concepts": [
        "us-gaap:NetIncomeLoss"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 381700000.0,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 467500000.0,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 522000000.0,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 567000000.0,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 624000000.0,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 674000000.0,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 686000000.0,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 703000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 690000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 810000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "operating_income",
      "label": "Operating income",
      "concept": "OperatingIncomeLoss",
      "unit": "USD",
      "derived": false,
      "source_concepts": [
        "us-gaap:OperatingIncomeLoss"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 554100000.0,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 671200000.0,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 694000000.0,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 778000000.0,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 740000000.0,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 795000000.0,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 928000000.0,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 943000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 886000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 1025000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "eps_diluted",
      "label": "Diluted EPS",
      "concept": "EarningsPerShareDiluted",
      "unit": "USD/shares",
      "derived": false,
      "source_concepts": [
        "us-gaap:EarningsPerShareDiluted"
      ],
      "points": [
        {
          "fiscal_year": 2011,
          "period_end": "2011-12-31",
          "value": 2.74,
          "filed": "2012-02-27",
          "accession": "0001193125-12-081622"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 1.99,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 2.19,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 2.33,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 2.47,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 2.63,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 2.73,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 2.78,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 2.69,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 3.14,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "operating_cash_flow",
      "label": "Operating cash flow",
      "concept": "NetCashProvidedByUsedInOperatingActivities",
      "unit": "USD",
      "derived": false,
      "source_concepts": [
        "us-gaap:NetCashProvidedByUsedInOperatingActivities"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 392800000.0,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 521600000.0,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 528000000.0,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 660000000.0,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 501000000.0,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 582000000.0,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 486000000.0,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 867000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 1167000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 1169000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "dividends_paid",
      "label": "Dividends paid",
      "concept": "PaymentsOfDividendsCommonStock",
      "unit": "USD",
      "derived": false,
      "source_concepts": [
        "us-gaap:PaymentsOfDividendsCommonStock"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 266500000.0,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 288300000.0,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 312000000.0,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 337000000.0,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 377000000.0,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 403000000.0,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 428000000.0,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 456000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 492000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 521000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "assets",
      "label": "Assets",
      "concept": "Assets",
      "unit": "USD",
      "derived": false,
      "source_concepts": [
        "us-gaap:Assets"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 13373800000.0,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 14187800000.0,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 15426000000.0,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 16701000000.0,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 17710000000.0,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 18553000000.0,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 20163000000.0,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 21237000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 22714000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 24991000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "equity",
      "label": "Stockholders' equity",
      "concept": "StockholdersEquity",
      "unit": "USD",
      "derived": false,
      "source_concepts": [
        "us-gaap:StockholdersEquity"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 4062000000.0,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 4182200000.0,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 4585700000.0,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 5205000000.0,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 5688000000.0,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 5990000000.0,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 6276000000.0,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 6777000000.0,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 7004000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 7334000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "cash",
      "label": "Cash and cash equivalents",
      "concept": "CashAndCashEquivalentsAtCarryingValue",
      "unit": "USD",
      "derived": false,
      "source_concepts": [
        "us-gaap:CashAndCashEquivalentsAtCarryingValue"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 8200000.0,
          "filed": "2018-02-23",
          "accession": "0000352541-18-000019"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 27900000.0,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 20900000.0,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 16000000.0,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 54000000.0,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 39000000.0,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 20000000.0,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 62000000.0,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 81000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 556000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "net_margin",
      "label": "Net margin",
      "concept": "NetIncomeLoss / Revenues",
      "unit": "Percent",
      "derived": true,
      "source_concepts": [
        "us-gaap:NetIncomeLoss",
        "us-gaap:Revenues"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 11.49698795180723,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 13.822364141682927,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 14.770797962648558,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 15.542763157894738,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 18.26697892271663,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 18.37012810029981,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 16.313912009512485,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 17.457164142041222,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 17.33232856066315,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 18.56946354883081,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "operating_margin",
      "label": "Operating margin",
      "concept": "OperatingIncomeLoss / Revenues",
      "unit": "Percent",
      "derived": true,
      "source_concepts": [
        "us-gaap:OperatingIncomeLoss",
        "us-gaap:Revenues"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 16.689759036144576,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 19.845071255395897,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 19.637804187889078,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 21.326754385964914,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 21.662763466042154,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 21.668029435813573,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 22.06896551724138,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 23.41693568413211,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 22.255714644561667,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 23.498395231545164,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "roe",
      "label": "Return on equity",
      "concept": "NetIncomeLoss / StockholdersEquity",
      "unit": "Percent",
      "derived": true,
      "source_concepts": [
        "us-gaap:NetIncomeLoss",
        "us-gaap:StockholdersEquity"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 9.396848842934515,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 11.17832719621252,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 11.383213031816299,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 10.893371757925072,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 10.970464135021098,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 11.252086811352253,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 10.930528999362652,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 10.373321528700014,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 9.851513420902341,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 11.04445050449959,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "roa",
      "label": "Return on assets",
      "concept": "NetIncomeLoss / Assets",
      "unit": "Percent",
      "derived": true,
      "source_concepts": [
        "us-gaap:NetIncomeLoss",
        "us-gaap:Assets"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 2.854087843395295,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 3.2950845092262364,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 3.38389731621937,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 3.3950062870486795,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 3.52343308865048,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 3.6328356600010783,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 3.4022714873778703,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 3.3102603945943403,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 3.0377740600510696,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 3.24116682005522,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    },
    {
      "metric_id": "current_ratio",
      "label": "Current ratio",
      "concept": "AssetsCurrent / LiabilitiesCurrent",
      "unit": "Ratio",
      "derived": true,
      "source_concepts": [
        "us-gaap:AssetsCurrent",
        "us-gaap:LiabilitiesCurrent"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "period_end": "2016-12-31",
          "value": 0.7548192771084338,
          "filed": "2018-02-23",
          "accession": "0000352541-18-000019"
        },
        {
          "fiscal_year": 2017,
          "period_end": "2017-12-31",
          "value": 0.42117263843648206,
          "filed": "2019-02-22",
          "accession": "0000352541-19-000013"
        },
        {
          "fiscal_year": 2018,
          "period_end": "2018-12-31",
          "value": 0.47752569795024635,
          "filed": "2020-02-21",
          "accession": "0000352541-20-000021"
        },
        {
          "fiscal_year": 2019,
          "period_end": "2019-12-31",
          "value": 0.42648490749756574,
          "filed": "2021-02-19",
          "accession": "0000352541-21-000022"
        },
        {
          "fiscal_year": 2020,
          "period_end": "2020-12-31",
          "value": 0.6838858905165767,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020"
        },
        {
          "fiscal_year": 2021,
          "period_end": "2021-12-31",
          "value": 0.5204479065238559,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017"
        },
        {
          "fiscal_year": 2022,
          "period_end": "2022-12-31",
          "value": 0.5289885738468049,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014"
        },
        {
          "fiscal_year": 2023,
          "period_end": "2023-12-31",
          "value": 0.5520833333333334,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014"
        },
        {
          "fiscal_year": 2024,
          "period_end": "2024-12-31",
          "value": 0.43609576427255986,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        },
        {
          "fiscal_year": 2025,
          "period_end": "2025-12-31",
          "value": 0.7993405558172397,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007"
        }
      ]
    }
  ],
  "quarterly": [
    {
      "metric_id": "revenue",
      "label": "Revenue",
      "concept": "Revenues",
      "unit": "USD",
      "source_concepts": [
        "us-gaap:Revenues"
      ],
      "points": [
        {
          "fiscal_year": 2016,
          "fiscal_quarter": 4,
          "period_label": "2016-Q4",
          "period_end": "2016-12-31",
          "value": 797000000.0,
          "filed": "2017-02-24",
          "accession": "0000352541-17-000017",
          "derived": true
        },
        {
          "fiscal_year": 2017,
          "fiscal_quarter": 1,
          "period_label": "2017-Q1",
          "period_end": "2017-03-31",
          "value": 853900000.0,
          "filed": "2017-05-04",
          "accession": "0000352541-17-000054",
          "derived": false
        },
        {
          "fiscal_year": 2017,
          "fiscal_quarter": 2,
          "period_label": "2017-Q2",
          "period_end": "2017-06-30",
          "value": 765300000.0,
          "filed": "2017-08-04",
          "accession": "0000352541-17-000081",
          "derived": false
        },
        {
          "fiscal_year": 2017,
          "fiscal_quarter": 3,
          "period_label": "2017-Q3",
          "period_end": "2017-09-30",
          "value": 906900000.0,
          "filed": "2017-11-03",
          "accession": "0000352541-17-000103",
          "derived": false
        },
        {
          "fiscal_year": 2017,
          "fiscal_quarter": 4,
          "period_label": "2017-Q4",
          "period_end": "2017-12-31",
          "value": 856100000.0,
          "filed": "2018-02-23",
          "accession": "0000352541-18-000019",
          "derived": true
        },
        {
          "fiscal_year": 2018,
          "fiscal_quarter": 1,
          "period_label": "2018-Q1",
          "period_end": "2018-03-31",
          "value": 916300000.0,
          "filed": "2018-05-03",
          "accession": "0000352541-18-000051",
          "derived": false
        },
        {
          "fiscal_year": 2018,
          "fiscal_quarter": 2,
          "period_label": "2018-Q2",
          "period_end": "2018-06-30",
          "value": 816100000.0,
          "filed": "2018-08-03",
          "accession": "0000352541-18-000078",
          "derived": false
        },
        {
          "fiscal_year": 2025,
          "fiscal_quarter": 1,
          "period_label": "2025-Q1",
          "period_end": "2025-03-31",
          "value": 1128000000.0,
          "filed": "2025-05-09",
          "accession": "0000352541-25-000053",
          "derived": false
        },
        {
          "fiscal_year": 2025,
          "fiscal_quarter": 2,
          "period_label": "2025-Q2",
          "period_end": "2025-06-30",
          "value": 961000000.0,
          "filed": "2025-08-08",
          "accession": "0000352541-25-000072",
          "derived": false
        },
        {
          "fiscal_year": 2025,
          "fiscal_quarter": 3,
          "period_label": "2025-Q3",
          "period_end": "2025-09-30",
          "value": 1210000000.0,
          "filed": "2025-11-07",
          "accession": "0000352541-25-000081",
          "derived": false
        },
        {
          "fiscal_year": 2025,
          "fiscal_quarter": 4,
          "period_label": "2025-Q4",
          "period_end": "2025-12-31",
          "value": 1064000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007",
          "derived": true
        },
        {
          "fiscal_year": 2026,
          "fiscal_quarter": 1,
          "period_label": "2026-Q1",
          "period_end": "2026-03-31",
          "value": 1184000000.0,
          "filed": "2026-05-01",
          "accession": "0000352541-26-000033",
          "derived": false
        }
      ]
    },
    {
      "metric_id": "net_income",
      "label": "Net income",
      "concept": "NetIncomeLoss",
      "unit": "USD",
      "source_concepts": [
        "us-gaap:NetIncomeLoss"
      ],
      "points": [
        {
          "fiscal_year": 2021,
          "fiscal_quarter": 4,
          "period_label": "2021-Q4",
          "period_end": "2021-12-31",
          "value": 95000000.0,
          "filed": "2022-02-18",
          "accession": "0000352541-22-000020",
          "derived": true
        },
        {
          "fiscal_year": 2022,
          "fiscal_quarter": 1,
          "period_label": "2022-Q1",
          "period_end": "2022-03-31",
          "value": 192000000.0,
          "filed": "2022-04-29",
          "accession": "0000352541-22-000058",
          "derived": false
        },
        {
          "fiscal_year": 2022,
          "fiscal_quarter": 2,
          "period_label": "2022-Q2",
          "period_end": "2022-06-30",
          "value": 159000000.0,
          "filed": "2022-08-05",
          "accession": "0000352541-22-000075",
          "derived": false
        },
        {
          "fiscal_year": 2022,
          "fiscal_quarter": 3,
          "period_label": "2022-Q3",
          "period_end": "2022-09-30",
          "value": 227000000.0,
          "filed": "2022-11-08",
          "accession": "0000352541-22-000082",
          "derived": false
        },
        {
          "fiscal_year": 2022,
          "fiscal_quarter": 4,
          "period_label": "2022-Q4",
          "period_end": "2022-12-31",
          "value": 107000000.0,
          "filed": "2023-02-24",
          "accession": "0000352541-23-000017",
          "derived": true
        },
        {
          "fiscal_year": 2023,
          "fiscal_quarter": 1,
          "period_label": "2023-Q1",
          "period_end": "2023-03-31",
          "value": 163000000.0,
          "filed": "2023-05-05",
          "accession": "0000352541-23-000059",
          "derived": false
        },
        {
          "fiscal_year": 2023,
          "fiscal_quarter": 4,
          "period_label": "2023-Q4",
          "period_end": "2023-12-31",
          "value": 121000000.0,
          "filed": "2024-02-16",
          "accession": "0000352541-24-000014",
          "derived": true
        },
        {
          "fiscal_year": 2024,
          "fiscal_quarter": 1,
          "period_label": "2024-Q1",
          "period_end": "2024-03-31",
          "value": 158000000.0,
          "filed": "2024-05-03",
          "accession": "0000352541-24-000058",
          "derived": false
        },
        {
          "fiscal_year": 2024,
          "fiscal_quarter": 4,
          "period_label": "2024-Q4",
          "period_end": "2024-12-31",
          "value": 150000000.0,
          "filed": "2025-02-21",
          "accession": "0000352541-25-000014",
          "derived": true
        },
        {
          "fiscal_year": 2025,
          "fiscal_quarter": 1,
          "period_label": "2025-Q1",
          "period_end": "2025-03-31",
          "value": 213000000.0,
          "filed": "2025-05-09",
          "accession": "0000352541-25-000053",
          "derived": false
        },
        {
          "fiscal_year": 2025,
          "fiscal_quarter": 4,
          "period_label": "2025-Q4",
          "period_end": "2025-12-31",
          "value": 142000000.0,
          "filed": "2026-02-20",
          "accession": "0000352541-26-000007",
          "derived": true
        },
        {
          "fiscal_year": 2026,
          "fiscal_quarter": 1,
          "period_label": "2026-Q1",
          "period_end": "2026-03-31",
          "value": 224000000.0,
          "filed": "2026-05-01",
          "accession": "0000352541-26-000033",
          "derived": false
        }
      ]
    },
    {
      "metric_id": "eps_diluted",
      "label": "Diluted EPS",
      "concept": "EarningsPerShareDiluted",
      "unit": "USD/shares",
      "source_concepts": [
        "us-gaap:EarningsPerShareDiluted"
      ],
      "points": [
        {
          "fiscal_year": 2022,
          "fiscal_quarter": 2,
          "period_label": "2022-Q2",
          "period_end": "2022-06-30",
          "value": 0.63,
          "filed": "2022-08-05",
          "accession": "0000352541-22-000075",
          "derived": false
        },
        {
          "fiscal_year": 2022,
          "fiscal_quarter": 3,
          "period_label": "2022-Q3",
          "period_end": "2022-09-30",
          "value": 0.9,
          "filed": "2022-11-08",
          "accession": "0000352541-22-000082",
          "derived": false
        },
        {
          "fiscal_year": 2023,
          "fiscal_quarter": 1,
          "period_label": "2023-Q1",
          "period_end": "2023-03-31",
          "value": 0.65,
          "filed": "2023-05-05",
          "accession": "0000352541-23-000059",
          "derived": false
        },
        {
          "fiscal_year": 2023,
          "fiscal_quarter": 2,
          "period_label": "2023-Q2",
          "period_end": "2023-06-30",
          "value": 0.64,
          "filed": "2023-08-04",
          "accession": "0000352541-23-000091",
          "derived": false
        },
        {
          "fiscal_year": 2023,
          "fiscal_quarter": 3,
          "period_label": "2023-Q3",
          "period_end": "2023-09-30",
          "value": 1.02,
          "filed": "2023-11-03",
          "accession": "0000352541-23-000108",
          "derived": false
        },
        {
          "fiscal_year": 2024,
          "fiscal_quarter": 1,
          "period_label": "2024-Q1",
          "period_end": "2024-03-31",
          "value": 0.62,
          "filed": "2024-05-03",
          "accession": "0000352541-24-000058",
          "derived": false
        },
        {
          "fiscal_year": 2024,
          "fiscal_quarter": 2,
          "period_label": "2024-Q2",
          "period_end": "2024-06-30",
          "value": 0.34,
          "filed": "2024-08-02",
          "accession": "0000352541-24-000089",
          "derived": false
        },
        {
          "fiscal_year": 2024,
          "fiscal_quarter": 3,
          "period_label": "2024-Q3",
          "period_end": "2024-09-30",
          "value": 1.15,
          "filed": "2024-11-01",
          "accession": "0000352541-24-000104",
          "derived": false
        },
        {
          "fiscal_year": 2025,
          "fiscal_quarter": 1,
          "period_label": "2025-Q1",
          "period_end": "2025-03-31",
          "value": 0.83,
          "filed": "2025-05-09",
          "accession": "0000352541-25-000053",
          "derived": false
        },
        {
          "fiscal_year": 2025,
          "fiscal_quarter": 2,
          "period_label": "2025-Q2",
          "period_end": "2025-06-30",
          "value": 0.68,
          "filed": "2025-08-08",
          "accession": "0000352541-25-000072",
          "derived": false
        },
        {
          "fiscal_year": 2025,
          "fiscal_quarter": 3,
          "period_label": "2025-Q3",
          "period_end": "2025-09-30",
          "value": 1.09,
          "filed": "2025-11-07",
          "accession": "0000352541-25-000081",
          "derived": false
        },
        {
          "fiscal_year": 2026,
          "fiscal_quarter": 1,
          "period_label": "2026-Q1",
          "period_end": "2026-03-31",
          "value": 0.87,
          "filed": "2026-05-01",
          "accession": "0000352541-26-000033",
          "derived": false
        }
      ]
    }
  ]
}