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Schedule II - Condensed Financial Information of Registrant (Balance Sheets (Parent Company)) (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Assets: |  |  |
Cash and cash equivalents | $ 1,974,747 | $ 1,363,195 |
Fixed maturity securities available for sale at fair value (cost $251,938 and $190,708 at December 31, 2024 and 2023, respectively) | 22,397,865 | 20,178,308 |
Loans receivable (net of allowance for expected credit losses of $591 and $1,146 at December 31, 2024 and 2023, respectively) | 405,453 | 201,271 |
Current federal income taxes | 39,382 | 1,318 |
Deferred federal and foreign income taxes | 220,217 | 309,623 |
Property, furniture and equipment at cost, less accumulated depreciation | 478,511 | 426,803 |
Other assets | 877,099 | 865,556 |
Total assets | 40,567,268 | 37,202,015 |
Liabilities: |  |  |
Other liabilities | 1,715,078 | 1,503,053 |
Current federal income taxes | 53,482 | 47,525 |
Deferred federal income taxes | 65,151 | 42,660 |
Subordinated debentures | 1,009,808 | 1,009,090 |
Total liabilities | 32,159,829 | 29,732,778 |
Stockholders' equity: |  |  |
Preferred stock | 0 | 0 |
Common stock | 158,705 | 158,705 |
Additional paid-in capital | 984,825 | 964,789 |
Retained earnings (including accumulated undistributed net income of subsidiaries of $9,216,210 and $8,497,674 at December 31, 2024 and 2023, respectively) | 12,265,070 | 11,040,908 |
Accumulated other comprehensive loss | (934,269) | (925,838) |
Treasury stock, at cost | (4,079,220) | (3,783,133) |
Total common stockholders’ equity | 8,395,111 | 7,455,431 |
Total liabilities and equity | 40,567,268 | 37,202,015 |
Fixed maturity securities available for sale at cost | 22,966,462 | 20,861,830 |
Financing receivable, allowance for credit loss | 1,114 | 3,004 | $ 1,791
Parent Company |  |  |
Assets: |  |  |
Cash and cash equivalents | 112,931 | 128,434 |
Fixed maturity securities available for sale at fair value (cost $251,938 and $190,708 at December 31, 2024 and 2023, respectively) | 251,800 | 189,189 |
Loans receivable (net of allowance for expected credit losses of $591 and $1,146 at December 31, 2024 and 2023, respectively) | 27,659 | 91,304 |
Equity securities, at fair value (cost $3,430 at both December 31, 2024 and 2023) | 3,430 | 3,430 |
Investment in subsidiaries | 10,770,734 | 9,887,117 |
Current federal income taxes | 36,417 | 0 |
Deferred federal and foreign income taxes | 228,329 | 278,946 |
Property, furniture and equipment at cost, less accumulated depreciation | 9,320 | 10,382 |
Other assets | 126,799 | 44,186 |
Total assets | 11,567,419 | 10,632,988 |
Liabilities: |  |  |
Current federal income taxes | 0 | 1,721 |
Subordinated debentures | 1,009,808 | 1,009,090 |
Senior notes | 1,821,774 | 1,821,671 |
Total liabilities | 3,172,308 | 3,177,557 |
Stockholders' equity: |  |  |
Preferred stock | 0 | 0 |
Common stock | 158,705 | 158,705 |
Additional paid-in capital | 984,825 | 964,789 |
Retained earnings (including accumulated undistributed net income of subsidiaries of $9,216,210 and $8,497,674 at December 31, 2024 and 2023, respectively) | 12,265,070 | 11,040,908 |
Accumulated other comprehensive loss | (934,269) | (925,838) |
Treasury stock, at cost | (4,079,220) | (3,783,133) |
Total common stockholders’ equity | 8,395,111 | 7,455,431 |
Total liabilities and equity | 11,567,419 | 10,632,988 |
Fixed maturity securities available for sale at cost | 251,938 | 190,708 |
Financing receivable, allowance for credit loss | 591 | 1,146 |
Equity securities available for sale at cost | 3,430 | 3,430 |
Accumulated undistributed net income of subsidiaries | 9,216,210 | 8,497,674 |
Parent Company | Related Party |  |  |
Liabilities: |  |  |
Other liabilities | 182,445 | 178,676 |
Parent Company | Nonrelated Party |  |  |
Liabilities: |  |  |
Other liabilities | $ 158,281 | $ 166,399 |

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