| | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-06-30 | 2025-12-31 |
| Amortization Of Securities | 0.0 | 0.0 | | | | |
| Asset Impairment Charge | 0.0 | 0.0 | | | | |
| Beginning Cash Position | | 58638000.0 | 42681000.0 | 400334000.0 | 64151000.0 | 75846000.0 |
| Capital Expenditure | | -163193000.0 | -140371000.0 | -136395000.0 | -139863000.0 | -140348000.0 |
| Capital Expenditure Reported | | -163193000.0 | -140371000.0 | -136395000.0 | -139863000.0 | -140348000.0 |
| Cash Dividends Paid | | -565924000.0 | -586976000.0 | -620466000.0 | -637730000.0 | -654068000.0 |
| Cash Flow From Continuing Financing Activities | | -1137564000.0 | -477271000.0 | -419742000.0 | -357603000.0 | -512200000.0 |
| Cash Flow From Continuing Investing Activities | | 145958000.0 | -145140000.0 | -973051000.0 | -670819000.0 | -552483000.0 |
| Cash Flow From Continuing Operating Activities | | 975649000.0 | 980064000.0 | 1068305000.0 | 1032155000.0 | 1074423000.0 |
| Change In Account Payable | | -17266000.0 | 5335000.0 | 25194000.0 | 472000.0 | 7217000.0 |
| Change In Other Current Liabilities | | 9627000.0 | 2735000.0 | -1910000.0 | -1523000.0 | -2264000.0 |
| Change In Payable | | -17266000.0 | 5335000.0 | 25194000.0 | 472000.0 | 7217000.0 |
| Change In Payables And Accrued Expense | | -17266000.0 | 5335000.0 | 25194000.0 | 472000.0 | 7217000.0 |
| Change In Prepaid Assets | | 5183000.0 | -9721000.0 | 32007000.0 | 29553000.0 | -2002000.0 |
| Change In Working Capital | | -2456000.0 | -1651000.0 | 55291000.0 | 28502000.0 | 2951000.0 |
| Changes In Cash | | -15957000.0 | 357653000.0 | -324488000.0 | 3733000.0 | 9740000.0 |
| Common Stock Dividend Paid | | -565924000.0 | -586976000.0 | -620466000.0 | -637730000.0 | -654068000.0 |
| Common Stock Payments | | -190040000.0 | -96004000.0 | -296000.0 | | -391000.0 |
| Depreciation Amortization Depletion | | 539319000.0 | 548438000.0 | 580220000.0 | 597662000.0 | 607542000.0 |
| Depreciation And Amortization | | 539319000.0 | 548438000.0 | 580220000.0 | 597662000.0 | 607542000.0 |
| Dividend Received CFO | | 95256000.0 | 76787000.0 | 62868000.0 | 70733000.0 | 93010000.0 |
| Dividends Received CFI | | 175624000.0 | 39751000.0 | 40503000.0 | 52003000.0 | 184401000.0 |
| Earnings Losses From Equity Investments | | -26030000.0 | -10561000.0 | -48206000.0 | -48374000.0 | -35464000.0 |
| End Cash Position | | 42681000.0 | 400334000.0 | 75846000.0 | 67884000.0 | 85586000.0 |
| Financing Cash Flow | | -1137564000.0 | -477271000.0 | -419742000.0 | -357603000.0 | -512200000.0 |
| Free Cash Flow | | 812456000.0 | 839693000.0 | 931910000.0 | 892292000.0 | 934075000.0 |
| Gain Loss On Investment Securities | | -48869000.0 | -69244000.0 | -183930000.0 | -418587000.0 | -303333000.0 |
| Gain Loss On Sale Of Business | | -17423000.0 | 0.0 | -210555000.0 | -72559000.0 | -330000.0 |
| Interest Paid Supplemental Data | | 198323000.0 | 207038000.0 | 223220000.0 | | 252651000.0 |
| Investing Cash Flow | | 145958000.0 | -145140000.0 | -973051000.0 | -670819000.0 | -552483000.0 |
| Issuance Of Debt | | 1376452000.0 | 1442046000.0 | 2222351000.0 | 4320856000.0 | 9083790000.0 |
| Long Term Debt Issuance | | 1376452000.0 | 1442046000.0 | 2222351000.0 | 4320856000.0 | 9083790000.0 |
| Long Term Debt Payments | | -1730178000.0 | -1198548000.0 | -1932639000.0 | -3948166000.0 | -8882104000.0 |
| Net Business Purchase And Sale | | -163188000.0 | -37405000.0 | -34073000.0 | -38996000.0 | -33752000.0 |
| Net Common Stock Issuance | | -190040000.0 | -96004000.0 | -296000.0 | | -391000.0 |
| Net Income From Continuing Operations | | 432985000.0 | 430708000.0 | 811306000.0 | 871484000.0 | 702773000.0 |
| Net Investment Properties Purchase And Sale | | 11684000.0 | -6159000.0 | -766600000.0 | -518197000.0 | -465212000.0 |
| Net Investment Purchase And Sale | | 53113000.0 | 43540000.0 | 26346000.0 | 8014000.0 | -24251000.0 |
| Net Issuance Payments Of Debt | | -353726000.0 | 243498000.0 | 289712000.0 | 372690000.0 | 201686000.0 |
| Net Long Term Debt Issuance | | -353726000.0 | 243498000.0 | 289712000.0 | 372690000.0 | 201686000.0 |
| Net Other Financing Charges | | -47399000.0 | -37789000.0 | -101005000.0 | -112548000.0 | -68357000.0 |
| Net Other Investing Changes | | 231918000.0 | -44496000.0 | -102832000.0 | -33780000.0 | -73321000.0 |
| Net Short Term Debt Issuance | 341257000.0 | -289184000.0 | -52073000.0 | | | |
| Operating Cash Flow | | 975649000.0 | 980064000.0 | 1068305000.0 | 1032155000.0 | 1074423000.0 |
| Operating Gains Losses | | -92320000.0 | -79805000.0 | -442691000.0 | -538758000.0 | -338365000.0 |
| Other Non Cash Items | | -4722000.0 | -2514000.0 | -5668000.0 | -5093000.0 | -3154000.0 |
| Proceeds From Stock Option Exercised | | 19525000.0 | 0.0 | 12313000.0 | 20281000.0 | 8930000.0 |
| Provisionand Write Offof Assets | | 381000.0 | 70000.0 | -179000.0 | -234000.0 | 26000.0 |
| Purchase Of Business | | -163188000.0 | -37405000.0 | -34073000.0 | -38996000.0 | -33752000.0 |
| Purchase Of Investment | | -18109000.0 | -20780000.0 | -1002000.0 | -10735000.0 | -25515000.0 |
| Purchase Of Investment Properties | | -146301000.0 | -105547000.0 | -1013886000.0 | -1129638000.0 | -975158000.0 |
| Repayment Of Debt | | -1730178000.0 | -1198548000.0 | -1932639000.0 | -3948166000.0 | -8882104000.0 |
| Repurchase Of Capital Stock | | -190040000.0 | -96004000.0 | -296000.0 | | -391000.0 |
| Sale Of Investment | | 71222000.0 | 64320000.0 | 27348000.0 | 18749000.0 | 1264000.0 |
| Sale Of Investment Properties | | 157985000.0 | 99388000.0 | 247286000.0 | 611441000.0 | 509946000.0 |
| Short Term Debt Issuance | 1050589000.0 | 1376452000.0 | 844046000.0 | | | |
| Short Term Debt Payments | -709332000.0 | -1665636000.0 | -896119000.0 | | | |
| Stock Based Compensation | | 7206000.0 | 8031000.0 | 7158000.0 | 7859000.0 | 9640000.0 |
| Unrealized Gain Loss On Investment Securities | -33104000.0 | 57983000.0 | | | | |
