| | 2019-12-31 | 2020-06-30 | 2020-12-31 | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-09-30 |
| Amortization Of Securities | | | 2979000.0 | 4674000.0 | 4375000.0 | -5277000.0 | -20370000.0 |
| Beginning Cash Position | | | 173076000.0 | 335071000.0 | 189389000.0 | 288729000.0 | 421300000.0 |
| Capital Expenditure | | | -55610000.0 | -95213000.0 | -58843000.0 | -57578000.0 | -95122000.0 |
| Cash Dividends Paid | | | -88786000.0 | -109364000.0 | -137965000.0 | -185844000.0 | -229345000.0 |
| Cash Flow From Continuing Financing Activities | | | -71557000.0 | -90206000.0 | -128785000.0 | -183725000.0 | -241267000.0 |
| Cash Flow From Continuing Investing Activities | | | -39177000.0 | -378886000.0 | -12510000.0 | -178726000.0 | -262159000.0 |
| Cash Flow From Continuing Operating Activities | | | 267803000.0 | 320010000.0 | 246674000.0 | 638213000.0 | 774042000.0 |
| Change In Account Payable | | | 10410000.0 | 32926000.0 | -11240000.0 | 4797000.0 | 42092000.0 |
| Change In Accrued Expense | | | 38475000.0 | 39273000.0 | 50985000.0 | -16322000.0 | 41687000.0 |
| Change In Income Tax Payable | | | 747000.0 | 11771000.0 | 16559000.0 | -308000.0 | 25834000.0 |
| Change In Inventory | | | -29503000.0 | -102323000.0 | -188073000.0 | 63583000.0 | -26941000.0 |
| Change In Other Current Assets | | | -3003000.0 | -15311000.0 | -177284000.0 | -24310000.0 | 54894000.0 |
| Change In Other Working Capital | | | 18524000.0 | 16536000.0 | 28514000.0 | -31187000.0 | |
| Change In Payable | | | 11157000.0 | 44697000.0 | 5319000.0 | 4489000.0 | 67926000.0 |
| Change In Payables And Accrued Expense | | | 49632000.0 | 83970000.0 | 56304000.0 | -11833000.0 | 109613000.0 |
| Change In Receivables | | | -14123000.0 | -37976000.0 | -77903000.0 | 2884000.0 | 21135000.0 |
| Change In Tax Payable | | | 747000.0 | 11771000.0 | 16559000.0 | -308000.0 | 25834000.0 |
| Change In Working Capital | | | 3003000.0 | -71640000.0 | -386956000.0 | 30324000.0 | 158701000.0 |
| Changes In Account Receivables | | | -14123000.0 | -37976000.0 | -77903000.0 | 2884000.0 | 21135000.0 |
| Changes In Cash | | | 157069000.0 | -149082000.0 | 105379000.0 | 275762000.0 | 270616000.0 |
| Common Stock Dividend Paid | | | -88786000.0 | -109364000.0 | -137965000.0 | -185844000.0 | -229345000.0 |
| Common Stock Payments | | | | 0.0 | 0.0 | -3741000.0 | -17901000.0 |
| Deferred Income Tax | | | -1627000.0 | -2772000.0 | -13220000.0 | 5865000.0 | -11660000.0 |
| Deferred Tax | | | -1627000.0 | -2772000.0 | -13220000.0 | 5865000.0 | -11660000.0 |
| Depreciation Amortization Depletion | | | 19186000.0 | 28699000.0 | 37114000.0 | 40168000.0 | 36615000.0 |
| Depreciation And Amortization | | | 19186000.0 | 28699000.0 | 37114000.0 | 40168000.0 | 36615000.0 |
| Earnings Losses From Equity Investments | | | | 0.0 | 0.0 | -1424000.0 | |
| Effect Of Exchange Rate Changes | | | 4926000.0 | 3400000.0 | -6039000.0 | -3310000.0 | 8565000.0 |
| End Cash Position | | | 335071000.0 | 189389000.0 | 288729000.0 | 561181000.0 | 691916000.0 |
| Financing Cash Flow | | | -71557000.0 | -90206000.0 | -128785000.0 | -183725000.0 | -241267000.0 |
| Free Cash Flow | | | 212193000.0 | 224797000.0 | 187831000.0 | 580635000.0 | 678920000.0 |
| Gain Loss On Investment Securities | -3806000.0 | | -4592000.0 | -4563000.0 | 6600000.0 | | |
| Gain Loss On Sale Of PPE | -259000.0 | -271000.0 | | | | | |
| Income Tax Paid Supplemental Data | | | 1405000.0 | 21148000.0 | 85031000.0 | 85128000.0 | 70064000.0 |
| Investing Cash Flow | | | -39177000.0 | -378886000.0 | -12510000.0 | -178726000.0 | -262159000.0 |
| Net Common Stock Issuance | | | | 0.0 | 0.0 | -3741000.0 | -17901000.0 |
| Net Income From Continuing Operations | | | 164375000.0 | 242023000.0 | 437672000.0 | 427374000.0 | 434242000.0 |
| Net Intangibles Purchase And Sale | | | 0.0 | -793000.0 | 0.0 | 0.0 | |
| Net Investment Properties Purchase And Sale | -981000.0 | | | | | | |
| Net Investment Purchase And Sale | | | 19129000.0 | -281131000.0 | 62825000.0 | -114295000.0 | -111428000.0 |
| Net Other Financing Charges | | | -5357000.0 | -2834000.0 | -2055000.0 | -2826000.0 | -2748000.0 |
| Net Other Investing Changes | | | -2696000.0 | -2542000.0 | -16492000.0 | -6853000.0 | -22326000.0 |
| Net PPEPurchase And Sale | | | -55610000.0 | -94420000.0 | -58843000.0 | -57578000.0 | -95122000.0 |
| Operating Cash Flow | | | 267803000.0 | 320010000.0 | 246674000.0 | 638213000.0 | 774042000.0 |
| Operating Gains Losses | | | -4592000.0 | -4563000.0 | 6600000.0 | -9929000.0 | -15698000.0 |
| Other Non Cash Items | | | -1072000.0 | 110000.0 | 97000.0 | -23000.0 | 1474000.0 |
| Pension And Employee Benefit Expense | | | -4592000.0 | -4563000.0 | 6600000.0 | -8505000.0 | -14274000.0 |
| Proceeds From Stock Option Exercised | | | 22586000.0 | 21992000.0 | 11235000.0 | 8686000.0 | 8727000.0 |
| Purchase Of Intangibles | | | 0.0 | -793000.0 | 0.0 | 0.0 | |
| Purchase Of Investment | | | -338263000.0 | -394886000.0 | -65785000.0 | -582603000.0 | -1031416000.0 |
| Purchase Of Investment Properties | -981000.0 | | | | | | |
| Purchase Of PPE | | | -55610000.0 | -94420000.0 | -58843000.0 | -57578000.0 | -95122000.0 |
| Repurchase Of Capital Stock | | | | 0.0 | 0.0 | -3741000.0 | -17901000.0 |
| Sale Of Investment | | | 357392000.0 | 113755000.0 | 128610000.0 | 468308000.0 | 919988000.0 |
| Sale Of PPE | 9268000.0 | | 29000.0 | 25000.0 | | | |
| Stock Based Compensation | | | 85551000.0 | 123479000.0 | 160992000.0 | 149711000.0 | 190738000.0 |
