| | 2020-03-31 | 2021-03-31 | 2022-03-31 | 2023-03-31 | 2024-03-31 | 2025-03-31 |
| Amortization Cash Flow | | | 195900000.0 | 1686400000.0 | 1626100000.0 | 1188300000.0 |
| Amortization Of Intangibles | | | 195900000.0 | 1686400000.0 | 1626100000.0 | 1188300000.0 |
| Asset Impairment Charge | 5333000.0 | | 70600000.0 | 79100000.0 | 2452000000.0 | 3622700000.0 |
| Beginning Cash Position | | | 2060200000.0 | 2195400000.0 | 1234600000.0 | 1102000000.0 |
| Capital Expenditure | | | -158600000.0 | -204200000.0 | -141700000.0 | -169400000.0 |
| Cash Flow From Continuing Financing Activities | | | -256800000.0 | 1930300000.0 | -91400000.0 | 650500000.0 |
| Cash Flow From Continuing Investing Activities | | | 139200000.0 | -2876300000.0 | -28200000.0 | -151500000.0 |
| Cash Flow From Continuing Operating Activities | | | 258000000.0 | 1100000.0 | -16100000.0 | -45200000.0 |
| Change In Account Payable | | | -45600000.0 | -405100000.0 | -200900000.0 | -465900000.0 |
| Change In Inventory | | 2503000.0 | 4106000.0 | | | |
| Change In Other Current Assets | | | -387000000.0 | -492800000.0 | -603400000.0 | -691600000.0 |
| Change In Other Working Capital | | | -30900000.0 | -141900000.0 | -11800000.0 | 6800000.0 |
| Change In Payable | | | -45600000.0 | -405100000.0 | -200900000.0 | -465900000.0 |
| Change In Payables And Accrued Expense | | | -45600000.0 | -405100000.0 | -200900000.0 | -465900000.0 |
| Change In Prepaid Assets | | | -200200000.0 | 77200000.0 | -154700000.0 | 11900000.0 |
| Change In Receivables | | | -17900000.0 | 106800000.0 | 83700000.0 | -105000000.0 |
| Change In Working Capital | | | -681600000.0 | -855800000.0 | -887100000.0 | -1243800000.0 |
| Changes In Account Receivables | | | -17900000.0 | 106800000.0 | 83700000.0 | -105000000.0 |
| Changes In Cash | | | 140400000.0 | -944900000.0 | -135700000.0 | 453800000.0 |
| Common Stock Issuance | | | 19700000.0 | 65400000.0 | 39400000.0 | 77300000.0 |
| Common Stock Payments | 0.0 | 0.0 | -200000000.0 | 0.0 | 0.0 | |
| Deferred Income Tax | -3486000.0 | | 8100000.0 | -410800000.0 | -150400000.0 | 139500000.0 |
| Deferred Tax | -3486000.0 | | 8100000.0 | -410800000.0 | -150400000.0 | 139500000.0 |
| Depreciation | | | 61200000.0 | 90300000.0 | 135500000.0 | 153900000.0 |
| Depreciation Amortization Depletion | | | 257100000.0 | 1776700000.0 | 1761600000.0 | 1342200000.0 |
| Depreciation And Amortization | | | 257100000.0 | 1776700000.0 | 1761600000.0 | 1342200000.0 |
| Effect Of Exchange Rate Changes | | | -5200000.0 | -15900000.0 | 3100000.0 | 3400000.0 |
| End Cash Position | | | 2195400000.0 | 1234600000.0 | 1102000000.0 | 1559200000.0 |
| Financing Cash Flow | | | -256800000.0 | 1930300000.0 | -91400000.0 | 650500000.0 |
| Free Cash Flow | | | 99400000.0 | -203100000.0 | -157800000.0 | -214600000.0 |
| Gain Loss On Investment Securities | | -41588000.0 | -6015000.0 | | | 6900000.0 |
| Income Tax Paid Supplemental Data | 27998000.0 | | 31000000.0 | 176800000.0 | 150200000.0 | 144300000.0 |
| Interest Paid Supplemental Data | 4750000.0 | | 0.0 | 79000000.0 | 137000000.0 | 147100000.0 |
| Investing Cash Flow | | | 139200000.0 | -2876300000.0 | -28200000.0 | -151500000.0 |
| Issuance Of Capital Stock | | | 19700000.0 | 65400000.0 | 39400000.0 | 77300000.0 |
| Issuance Of Debt | | | 0.0 | 3248900000.0 | 1348900000.0 | 598900000.0 |
| Long Term Debt Issuance | | | 0.0 | 3248900000.0 | 1348900000.0 | 598900000.0 |
| Long Term Debt Payments | | | -200000.0 | -1366800000.0 | -1339600000.0 | -8300000.0 |
| Net Business Purchase And Sale | | | -161300000.0 | -3310900000.0 | -18100000.0 | 39200000.0 |
| Net Common Stock Issuance | | | -180300000.0 | 65400000.0 | 39400000.0 | 77300000.0 |
| Net Income From Continuing Operations | | | 418000000.0 | -1124700000.0 | -3744200000.0 | -4478900000.0 |
| Net Intangibles Purchase And Sale | 0.0 | | | | | |
| Net Investment Purchase And Sale | | | 458300000.0 | 646900000.0 | 148200000.0 | -8500000.0 |
| Net Issuance Payments Of Debt | | | -200000.0 | 1882100000.0 | 9300000.0 | 590600000.0 |
| Net Long Term Debt Issuance | | | -200000.0 | 1882100000.0 | 9300000.0 | 590600000.0 |
| Net Other Financing Charges | | | -76300000.0 | -17200000.0 | -140100000.0 | -17400000.0 |
| Net Other Investing Changes | | | 800000.0 | -8100000.0 | -16600000.0 | -12800000.0 |
| Net PPEPurchase And Sale | | | -158600000.0 | -204200000.0 | -141700000.0 | -169400000.0 |
| Operating Cash Flow | | | 258000000.0 | 1100000.0 | -16100000.0 | -45200000.0 |
| Operating Gains Losses | | -41588000.0 | -6015000.0 | | | 6900000.0 |
| Other Non Cash Items | | | 57200000.0 | 177800000.0 | 232200000.0 | 251600000.0 |
| Purchase Of Business | | -102500000.0 | -161300000.0 | -3310900000.0 | -18100000.0 | |
| Purchase Of Intangibles | 0.0 | | | | | |
| Purchase Of Investment | | | -768600000.0 | -15700000.0 | -18500000.0 | -21100000.0 |
| Purchase Of PPE | | | -158600000.0 | -204200000.0 | -141700000.0 | -169400000.0 |
| Repayment Of Debt | | | -200000.0 | -1366800000.0 | -1339600000.0 | -8300000.0 |
| Repurchase Of Capital Stock | 0.0 | 0.0 | -200000000.0 | 0.0 | 0.0 | |
| Sale Of Business | | | | 0.0 | 0.0 | 39200000.0 |
| Sale Of Investment | | | 1226900000.0 | 662600000.0 | 166700000.0 | 12600000.0 |
| Stock Based Compensation | | | 134600000.0 | 327300000.0 | 311200000.0 | 314600000.0 |
| Unrealized Gain Loss On Investment Securities | | | -6000000.0 | 31500000.0 | 8600000.0 | 6900000.0 |
