| | 2020-03-31 | 2021-03-31 | 2022-03-31 | 2023-03-31 | 2024-03-31 | 2024-12-31 | 2025-03-31 |
| Amortization Cash Flow | | 146100000.0 | 195900000.0 | 1686400000.0 | 1626100000.0 | 1293700000.0 | |
| Amortization Of Intangibles | | 146100000.0 | 195900000.0 | 1686400000.0 | 1626100000.0 | 1293700000.0 | |
| Asset Impairment Charge | 5333000.0 | 39100000.0 | 70600000.0 | 79100000.0 | 2452000000.0 | 2286600000.0 | |
| Beginning Cash Position | | 1993400000.0 | 2060200000.0 | 2195400000.0 | 1234600000.0 | 1189800000.0 | |
| Capital Expenditure | | -68900000.0 | -158600000.0 | -204200000.0 | -141700000.0 | -161500000.0 | |
| Cash Flow From Continuing Financing Activities | | -57400000.0 | -256800000.0 | 1930300000.0 | -91400000.0 | 608800000.0 | |
| Cash Flow From Continuing Investing Activities | | -806800000.0 | 139200000.0 | -2876300000.0 | -28200000.0 | -143400000.0 | |
| Cash Flow From Continuing Operating Activities | | 912300000.0 | 258000000.0 | 1100000.0 | -16100000.0 | | |
| Change In Account Payable | | 78700000.0 | -45600000.0 | -405100000.0 | -200900000.0 | 100000.0 | |
| Change In Inventory | | 2503000.0 | 4106000.0 | | | | |
| Change In Other Current Assets | | -221400000.0 | -387000000.0 | -492800000.0 | -603400000.0 | -715000000.0 | |
| Change In Other Working Capital | | 152500000.0 | -30900000.0 | -141900000.0 | -11800000.0 | -13700000.0 | |
| Change In Payable | | | -45600000.0 | -405100000.0 | -200900000.0 | 100000.0 | -465900000.0 |
| Change In Payables And Accrued Expense | | 78700000.0 | -45600000.0 | -405100000.0 | -200900000.0 | 100000.0 | |
| Change In Prepaid Assets | | -82000000.0 | -200200000.0 | 77200000.0 | -154700000.0 | -76800000.0 | |
| Change In Receivables | | 47200000.0 | -17900000.0 | 106800000.0 | 83700000.0 | -11400000.0 | |
| Change In Working Capital | | -25000000.0 | -681600000.0 | -855800000.0 | -887100000.0 | -816800000.0 | |
| Changes In Account Receivables | | 47200000.0 | -17900000.0 | 106800000.0 | 83700000.0 | -11400000.0 | |
| Changes In Cash | | 48200000.0 | 140400000.0 | -944900000.0 | -135700000.0 | 132300000.0 | |
| Common Stock Issuance | | 14200000.0 | 19700000.0 | 65400000.0 | 39400000.0 | 56300000.0 | |
| Common Stock Payments | 0.0 | 0.0 | -200000000.0 | 0.0 | 0.0 | | |
| Deferred Income Tax | -3486000.0 | 10600000.0 | 8100000.0 | -410800000.0 | -150400000.0 | | |
| Deferred Tax | -3486000.0 | 10600000.0 | 8100000.0 | -410800000.0 | -150400000.0 | | |
| Depreciation | | 56300000.0 | 61200000.0 | 90300000.0 | 135500000.0 | 148100000.0 | 153900000.0 |
| Depreciation Amortization Depletion | | 202400000.0 | 257100000.0 | 1776700000.0 | 1761600000.0 | 1441800000.0 | |
| Depreciation And Amortization | | 202400000.0 | 257100000.0 | 1776700000.0 | 1761600000.0 | 1441800000.0 | |
| Effect Of Exchange Rate Changes | | 18600000.0 | -5200000.0 | -15900000.0 | 3100000.0 | -13200000.0 | |
| End Cash Position | | | 2195400000.0 | 1234600000.0 | 1102000000.0 | 1322100000.0 | 1559200000.0 |
| Financing Cash Flow | | -57400000.0 | -256800000.0 | 1930300000.0 | -91400000.0 | 608800000.0 | |
| Free Cash Flow | | 843400000.0 | 99400000.0 | -203100000.0 | -157800000.0 | -494600000.0 | |
| Gain Loss On Investment Securities | | -41588000.0 | -6015000.0 | | | | |
| Income Tax Paid Supplemental Data | 27998000.0 | | 31000000.0 | 176800000.0 | 150200000.0 | | 144300000.0 |
| Interest Paid Supplemental Data | 4750000.0 | 1900000.0 | 0.0 | 79000000.0 | 137000000.0 | | |
| Investing Cash Flow | | -806800000.0 | 139200000.0 | -2876300000.0 | -28200000.0 | -143400000.0 | |
| Issuance Of Capital Stock | | | 19700000.0 | 65400000.0 | 39400000.0 | | 77300000.0 |
| Issuance Of Debt | | 0.0 | 0.0 | 3248900000.0 | 1348900000.0 | 948500000.0 | |
| Long Term Debt Issuance | | 0.0 | 0.0 | 3248900000.0 | 1348900000.0 | 948500000.0 | |
| Long Term Debt Payments | | 0.0 | -200000.0 | -1366800000.0 | -1339600000.0 | -358300000.0 | |
| Net Business Purchase And Sale | | -102500000.0 | -161300000.0 | -3310900000.0 | -18100000.0 | 44800000.0 | |
| Net Common Stock Issuance | | 14200000.0 | -180300000.0 | 65400000.0 | 39400000.0 | 56300000.0 | |
| Net Income From Continuing Operations | | 588900000.0 | 418000000.0 | -1124700000.0 | -3744200000.0 | -3655700000.0 | |
| Net Intangibles Purchase And Sale | 0.0 | | | | | | |
| Net Investment Purchase And Sale | | -635400000.0 | 458300000.0 | 646900000.0 | 148200000.0 | -2200000.0 | |
| Net Issuance Payments Of Debt | | 0.0 | -200000.0 | 1882100000.0 | 9300000.0 | 590200000.0 | |
| Net Long Term Debt Issuance | | 0.0 | -200000.0 | 1882100000.0 | 9300000.0 | 590200000.0 | |
| Net Other Financing Charges | | -71600000.0 | -76300000.0 | -17200000.0 | -140100000.0 | -37700000.0 | |
| Net Other Investing Changes | | | 800000.0 | -8100000.0 | -16600000.0 | -24500000.0 | |
| Net PPEPurchase And Sale | | -68900000.0 | -158600000.0 | -204200000.0 | -141700000.0 | -161500000.0 | |
| Operating Cash Flow | | 912300000.0 | 258000000.0 | 1100000.0 | -16100000.0 | -333100000.0 | |
| Operating Gains Losses | | -41588000.0 | -6015000.0 | | | | |
| Other Non Cash Items | | 36100000.0 | 57200000.0 | 177800000.0 | 232200000.0 | 242100000.0 | |
| Purchase Of Business | | -102500000.0 | -161300000.0 | -3310900000.0 | -18100000.0 | | |
| Purchase Of Intangibles | 0.0 | | | | | | |
| Purchase Of Investment | | -1229200000.0 | -768600000.0 | -15700000.0 | -18500000.0 | -22400000.0 | |
| Purchase Of PPE | | -68900000.0 | -158600000.0 | -204200000.0 | -141700000.0 | -161500000.0 | |
| Repayment Of Debt | | 0.0 | -200000.0 | -1366800000.0 | -1339600000.0 | -358300000.0 | |
| Repurchase Of Capital Stock | 0.0 | 0.0 | -200000000.0 | 0.0 | 0.0 | | |
| Sale Of Investment | | 593800000.0 | 1226900000.0 | 662600000.0 | 166700000.0 | 20200000.0 | |
| Stock Based Compensation | | 101800000.0 | 134600000.0 | 327300000.0 | 311200000.0 | 300600000.0 | |
| Unrealized Gain Loss On Investment Securities | | -41600000.0 | -6000000.0 | 31500000.0 | 8600000.0 | 11000000.0 | |
