| | 2020-12-31 | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-03-31 |
| Asset Impairment Charge | | 0.0 | 1045022000.0 | 68091000.0 | 0.0 | 101703000.0 |
| Beginning Cash Position | | 1249440000.0 | 785537000.0 | 926619000.0 | 914323000.0 | 788837000.0 |
| Capital Expenditure | | -30107000.0 | -37199000.0 | -39908000.0 | -43498000.0 | -47695000.0 |
| Cash Flow From Continuing Financing Activities | | 452749000.0 | -506484000.0 | -656533000.0 | -787168000.0 | -828936000.0 |
| Cash Flow From Continuing Investing Activities | | -1557969000.0 | -30024000.0 | -73307000.0 | -53101000.0 | -48671000.0 |
| Cash Flow From Continuing Operating Activities | | 651551000.0 | 683612000.0 | 705513000.0 | 752469000.0 | 732619000.0 |
| Change In Account Payable | | 69772000.0 | 21102000.0 | 31910000.0 | -72604000.0 | |
| Change In Accrued Expense | | 84789000.0 | 6439000.0 | 34439000.0 | 34240000.0 | |
| Change In Other Current Assets | | -25159000.0 | 7390000.0 | -2409000.0 | -1381000.0 | -5204000.0 |
| Change In Other Current Liabilities | | 40423000.0 | 14416000.0 | 4783000.0 | 2541000.0 | -13388000.0 |
| Change In Other Working Capital | | 1441000.0 | 1905000.0 | 457000.0 | 4945000.0 | |
| Change In Payable | | 69772000.0 | 21102000.0 | 31910000.0 | -72604000.0 | |
| Change In Payables And Accrued Expense | | 154561000.0 | 27541000.0 | 66349000.0 | -38364000.0 | |
| Change In Prepaid Assets | | -44186000.0 | 23840000.0 | -47490000.0 | 39317000.0 | |
| Change In Receivables | | -103197000.0 | -34626000.0 | -45394000.0 | 72666000.0 | |
| Change In Working Capital | | 23883000.0 | 40466000.0 | -23704000.0 | 79724000.0 | 59972000.0 |
| Changes In Account Receivables | | -103197000.0 | -34626000.0 | -45394000.0 | 72666000.0 | |
| Changes In Cash | | -453669000.0 | 147104000.0 | -24327000.0 | -87800000.0 | -144988000.0 |
| Common Stock Payments | | -302774000.0 | -425727000.0 | -576968000.0 | -723899000.0 | -754732000.0 |
| Deferred Income Tax | | -88952000.0 | -55303000.0 | -50086000.0 | -14445000.0 | -11757000.0 |
| Deferred Tax | | -88952000.0 | -55303000.0 | -50086000.0 | -14445000.0 | -11757000.0 |
| Depreciation Amortization Depletion | | 74267000.0 | 96702000.0 | 91323000.0 | 108074000.0 | 108518000.0 |
| Depreciation And Amortization | | 74267000.0 | 96702000.0 | 91323000.0 | 108074000.0 | 108518000.0 |
| Effect Of Exchange Rate Changes | | -10234000.0 | -6022000.0 | 12031000.0 | -15345000.0 | 5342000.0 |
| End Cash Position | | 785537000.0 | 926619000.0 | 914323000.0 | 811178000.0 | 643849000.0 |
| Financing Cash Flow | | 452749000.0 | -506484000.0 | -656533000.0 | -787168000.0 | -828936000.0 |
| Free Cash Flow | | 621444000.0 | 646413000.0 | 665605000.0 | 708971000.0 | 684924000.0 |
| Gain Loss On Sale Of Business | | 0.0 | 0.0 | 2630000.0 | 0.0 | |
| Income Tax Paid Supplemental Data | | 94160000.0 | 41679000.0 | 42676000.0 | 89579000.0 | |
| Interest Paid Supplemental Data | | 6054000.0 | 9534000.0 | 9315000.0 | 9052000.0 | |
| Investing Cash Flow | | -1557969000.0 | -30024000.0 | -73307000.0 | -53101000.0 | -48671000.0 |
| Issuance Of Debt | 650000000.0 | 1000000000.0 | 0.0 | 0.0 | | |
| Long Term Debt Issuance | 650000000.0 | 1000000000.0 | 0.0 | 0.0 | | |
| Long Term Debt Payments | | -52764000.0 | -6307000.0 | -6278000.0 | -6091000.0 | -6057000.0 |
| Net Business Purchase And Sale | 0.0 | -1699974000.0 | 0.0 | 0.0 | | |
| Net Common Stock Issuance | | -302774000.0 | -425727000.0 | -576968000.0 | -723899000.0 | -754732000.0 |
| Net Foreign Currency Exchange Gain Loss | 7349000.0 | -14071000.0 | 1238000.0 | 7400000.0 | | |
| Net Income From Continuing Operations | | 493507000.0 | -694288000.0 | 307568000.0 | 303281000.0 | 188181000.0 |
| Net Intangibles Purchase And Sale | | -1937000.0 | -26962000.0 | -26970000.0 | -29290000.0 | -32496000.0 |
| Net Investment Purchase And Sale | | 172112000.0 | 7175000.0 | -33399000.0 | -9603000.0 | -976000.0 |
| Net Issuance Payments Of Debt | | 947236000.0 | -6307000.0 | -6278000.0 | -6091000.0 | -6057000.0 |
| Net Long Term Debt Issuance | | 947236000.0 | -6307000.0 | -6278000.0 | -6091000.0 | -6057000.0 |
| Net Other Financing Charges | | -214419000.0 | -89474000.0 | -87515000.0 | -61085000.0 | -72747000.0 |
| Net Other Investing Changes | -880000.0 | -1937000.0 | -6456000.0 | | | |
| Net PPEPurchase And Sale | | -28170000.0 | -10237000.0 | -12938000.0 | -14208000.0 | -15199000.0 |
| Operating Cash Flow | | 651551000.0 | 683612000.0 | 705513000.0 | 752469000.0 | 732619000.0 |
| Operating Gains Losses | 24204000.0 | -14071000.0 | 1238000.0 | 2630000.0 | | |
| Other Non Cash Items | | 6976000.0 | 7661000.0 | 5499000.0 | -18962000.0 | 1473000.0 |
| Proceeds From Stock Option Exercised | | 22706000.0 | 15024000.0 | 14228000.0 | 3907000.0 | 4600000.0 |
| Provisionand Write Offof Assets | | 16031000.0 | 12464000.0 | 19634000.0 | 11950000.0 | 10257000.0 |
| Purchase Of Business | 0.0 | -1699974000.0 | 0.0 | 0.0 | | |
| Purchase Of Intangibles | | -1937000.0 | -26962000.0 | -26970000.0 | -29290000.0 | -32496000.0 |
| Purchase Of Investment | | -418518000.0 | -270345000.0 | -342850000.0 | -330763000.0 | -305362000.0 |
| Purchase Of PPE | | -28170000.0 | -10237000.0 | -12938000.0 | -14208000.0 | -15199000.0 |
| Repayment Of Debt | | -52764000.0 | -6307000.0 | -6278000.0 | -6091000.0 | -6057000.0 |
| Repurchase Of Capital Stock | | -302774000.0 | -425727000.0 | -576968000.0 | -723899000.0 | -754732000.0 |
| Sale Of Investment | | 590630000.0 | 277520000.0 | 309451000.0 | 321160000.0 | 304386000.0 |
| Stock Based Compensation | | 139910000.0 | 230888000.0 | 284558000.0 | 282847000.0 | 274272000.0 |
