| | 2020-12-31 | 2021-12-31 | 2022-12-31 | 2023-12-31 | 2024-12-31 | 2025-03-31 |
| Asset Impairment Charge | | 650000.0 | 310000.0 | 427000.0 | 506000.0 | 509000.0 |
| Beginning Cash Position | | 411768000.0 | 818858000.0 | 453927000.0 | 897484000.0 | 947406000.0 |
| Capital Expenditure | | -162832000.0 | -208070000.0 | -221102000.0 | -219394000.0 | -225820000.0 |
| Capital Expenditure Reported | | -162832000.0 | -208070000.0 | -221102000.0 | -219394000.0 | -225820000.0 |
| Cash Dividends Paid | | -393812000.0 | -539033000.0 | -638129000.0 | -689244000.0 | -694250000.0 |
| Cash Flow From Continuing Financing Activities | | 658988000.0 | -574105000.0 | 110021000.0 | -1093726000.0 | -1190314000.0 |
| Cash Flow From Continuing Investing Activities | | -1159558000.0 | -814413000.0 | -773552000.0 | -465870000.0 | -555198000.0 |
| Cash Flow From Continuing Operating Activities | | 907660000.0 | 1023587000.0 | 1107088000.0 | 1081805000.0 | 1116736000.0 |
| Change In Other Current Assets | | -15095000.0 | -10887000.0 | -24524000.0 | -29234000.0 | 3526000.0 |
| Change In Other Current Liabilities | | 6964000.0 | 6489000.0 | 12114000.0 | 3624000.0 | 16790000.0 |
| Change In Other Working Capital | -19014000.0 | | | | | |
| Change In Payables And Accrued Expense | | 32892000.0 | -5989000.0 | 24375000.0 | 46502000.0 | 28412000.0 |
| Change In Prepaid Assets | 10149000.0 | 7231000.0 | | | | |
| Change In Working Capital | | 24761000.0 | -10387000.0 | 11965000.0 | 20892000.0 | 48728000.0 |
| Changes In Cash | | 407090000.0 | -364931000.0 | 443557000.0 | -477791000.0 | -628776000.0 |
| Common Stock Dividend Paid | | -393812000.0 | -539033000.0 | -638129000.0 | -689244000.0 | -694250000.0 |
| Common Stock Issuance | | 933790000.0 | 98367000.0 | 0.0 | 0.0 | |
| Depreciation Amortization Depletion | | 592135000.0 | 638114000.0 | 674287000.0 | 714326000.0 | 722159000.0 |
| Depreciation And Amortization | | 592135000.0 | 638114000.0 | 674287000.0 | 714326000.0 | 722159000.0 |
| Dividends Received CFI | | 1890000.0 | 6119000.0 | 13227000.0 | 18684000.0 | 19144000.0 |
| Earnings Losses From Equity Investments | | 1982000.0 | 11433000.0 | 20620000.0 | 31063000.0 | 31203000.0 |
| End Cash Position | | 818858000.0 | 453927000.0 | 897484000.0 | 419693000.0 | 318630000.0 |
| Financing Cash Flow | | 658988000.0 | -574105000.0 | 110021000.0 | -1093726000.0 | -1190314000.0 |
| Free Cash Flow | | 744828000.0 | 815517000.0 | 885986000.0 | 862411000.0 | 890916000.0 |
| Gain Loss On Investment Securities | | -35928000.0 | -77274000.0 | -174515000.0 | -233177000.0 | -260386000.0 |
| Gain Loss On Sale Of PPE | -54594000.0 | -60008000.0 | | | | |
| Income Tax Paid Supplemental Data | | 809000.0 | 1534000.0 | 245000.0 | 158000.0 | |
| Interest Paid Supplemental Data | | 285501000.0 | 275730000.0 | 290649000.0 | 321328000.0 | 323943000.0 |
| Investing Cash Flow | | -1159558000.0 | -814413000.0 | -773552000.0 | -465870000.0 | -555198000.0 |
| Issuance Of Capital Stock | | 933790000.0 | 98367000.0 | 0.0 | 0.0 | |
| Issuance Of Debt | | 2338036000.0 | 1453434000.0 | 940144000.0 | 2994275000.0 | 3094275000.0 |
| Long Term Debt Issuance | | 2338036000.0 | 1453434000.0 | 940144000.0 | 2994275000.0 | 3094275000.0 |
| Long Term Debt Payments | | -2166865000.0 | -1542249000.0 | -170725000.0 | -3325749000.0 | -3522737000.0 |
| Net Business Purchase And Sale | | -65000000.0 | -167728000.0 | -442000.0 | -44186000.0 | -53899000.0 |
| Net Common Stock Issuance | | 933790000.0 | 98367000.0 | 0.0 | 0.0 | |
| Net Income From Continuing Operations | | 262776000.0 | 384799000.0 | 521028000.0 | 455365000.0 | 478861000.0 |
| Net Investment Properties Purchase And Sale | | -1032693000.0 | -482503000.0 | -505457000.0 | -183368000.0 | -232237000.0 |
| Net Investment Purchase And Sale | | 111443000.0 | 60476000.0 | -32716000.0 | 27486000.0 | 26595000.0 |
| Net Issuance Payments Of Debt | | 171171000.0 | -88815000.0 | 769419000.0 | -331474000.0 | -428462000.0 |
| Net Long Term Debt Issuance | | 171171000.0 | -88815000.0 | 769419000.0 | -331474000.0 | -428462000.0 |
| Net Other Financing Charges | | -52161000.0 | -44624000.0 | -21269000.0 | -73008000.0 | -67602000.0 |
| Net Other Investing Changes | | -12366000.0 | -22707000.0 | -27062000.0 | -65092000.0 | -88981000.0 |
| Net Short Term Debt Issuance | 0.0 | 0.0 | 0.0 | | | |
| Operating Cash Flow | | 907660000.0 | 1023587000.0 | 1107088000.0 | 1081805000.0 | 1116736000.0 |
| Operating Gains Losses | | -33946000.0 | -65841000.0 | -153895000.0 | -202114000.0 | -229183000.0 |
| Other Non Cash Items | | 34114000.0 | 47630000.0 | 23773000.0 | 64912000.0 | 65487000.0 |
| Purchase Of Business | | -65000000.0 | -167728000.0 | -442000.0 | -44186000.0 | -53899000.0 |
| Purchase Of Investment | | -8477000.0 | -15832000.0 | -33577000.0 | -4718000.0 | -5383000.0 |
| Purchase Of Investment Properties | | -1264369000.0 | -722537000.0 | -999877000.0 | -768544000.0 | -848140000.0 |
| Repayment Of Debt | | -2166865000.0 | -1542249000.0 | -170725000.0 | -3325749000.0 | -3522737000.0 |
| Sale Of Investment | | 119920000.0 | 76308000.0 | 861000.0 | 32204000.0 | 31978000.0 |
| Sale Of Investment Properties | | 231676000.0 | 240034000.0 | 494420000.0 | 585176000.0 | 615903000.0 |
| Short Term Debt Issuance | 320000000.0 | 400000000.0 | 130000000.0 | | | |
| Short Term Debt Payments | -320000000.0 | -400000000.0 | -130000000.0 | | | |
| Stock Based Compensation | | 27170000.0 | 28962000.0 | 29503000.0 | 27918000.0 | 30175000.0 |
| Unrealized Gain Loss On Investment Securities | -29723000.0 | | | | | |
