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Schedule II - Condensed Financial Information of Registrant (Balance Sheets (Parent Company)) (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | --- | ---
Assets: |  |  |
Cash and cash equivalents | $ 1,363,195 | $ 1,449,346 |
Fixed maturity securities available for sale at fair value (cost $190,708 and $285,900 at December 31, 2023 and 2022, respectively) | 20,178,308 | 17,587,349 |
Loans receivable (net of allowance for expected credit losses of $1,146 and $559 at December 31, 2023 and 2022, respectively) | 201,271 | 193,002 |
Current federal income taxes | 1,318 | 39,123 |
Deferred federal and foreign income taxes | 309,623 | 340,647 |
Property, furniture and equipment at cost, less accumulated depreciation | 426,803 | 423,232 |
Other assets | 865,556 | 736,022 |
Total assets | 37,202,015 | 33,861,099 |
Liabilities: |  |  |
Other liabilities | 1,503,053 | 1,377,740 |
Current federal income taxes | 47,525 | 34,350 |
Deferred federal income taxes | 42,660 | 11,646 |
Subordinated debentures | 1,009,090 | 1,008,371 |
Total liabilities | 29,732,778 | 27,092,938 |
Stockholders' equity: |  |  |
Preferred stock | 0 | 0 |
Common stock | 105,803 | 105,803 |
Additional paid-in capital | 1,017,691 | 997,534 |
Retained earnings (including accumulated undistributed net income of subsidiaries of $8,497,674 and $7,975,360 at December 31, 2023 and 2022, respectively) | 11,040,908 | 10,161,005 |
Accumulated other comprehensive loss | (925,838) | (1,264,581) |
Treasury stock, at cost | (3,783,133) | (3,251,429) |
Total common stockholders’ equity | 7,455,431 | 6,748,332 |
Total liabilities and equity | 37,202,015 | 33,861,099 |
Fixed maturity securities available for sale at cost | 20,861,830 | 18,664,073 |
Financing receivable, allowance for credit loss | 3,004 | 1,791 | $ 1,718
Parent Company |  |  |
Assets: |  |  |
Cash and cash equivalents | 128,434 | 103,522 |
Fixed maturity securities available for sale at fair value (cost $190,708 and $285,900 at December 31, 2023 and 2022, respectively) | 189,189 | 275,511 |
Loans receivable (net of allowance for expected credit losses of $1,146 and $559 at December 31, 2023 and 2022, respectively) | 91,304 | 109,793 |
Equity securities, at fair value (cost $3,430 in both 2023 and 2022) | 3,430 | 3,430 |
Investment in subsidiaries | 9,887,117 | 8,888,455 |
Current federal income taxes | 0 | 34,452 |
Deferred federal and foreign income taxes | 278,946 | 304,191 |
Property, furniture and equipment at cost, less accumulated depreciation | 10,382 | 11,356 |
Other assets | 44,186 | 39,741 |
Total assets | 10,632,988 | 9,770,451 |
Liabilities: |  |  |
Current federal income taxes | 1,721 | 0 |
Subordinated debentures | 1,009,090 | 1,008,371 |
Senior notes | 1,821,671 | 1,821,569 |
Total liabilities | 3,177,557 | 3,022,119 |
Stockholders' equity: |  |  |
Preferred stock |  | 0 |
Common stock | 105,803 | 105,803 |
Additional paid-in capital | 1,017,691 | 997,534 |
Retained earnings (including accumulated undistributed net income of subsidiaries of $8,497,674 and $7,975,360 at December 31, 2023 and 2022, respectively) | 11,040,908 | 10,161,005 |
Accumulated other comprehensive loss | (925,838) | (1,264,581) |
Treasury stock, at cost | (3,783,133) | (3,251,429) |
Total common stockholders’ equity | 7,455,431 | 6,748,332 |
Total liabilities and equity | 10,632,988 | 9,770,451 |
Fixed maturity securities available for sale at cost | 190,708 | 285,900 |
Financing receivable, allowance for credit loss | 1,146 | 559 |
Equity securities available for sale at cost | 3,430 | 3,430 |
Accumulated undistributed net income of subsidiaries | 8,497,674 | 7,975,360 |
Parent Company | Related Party |  |  |
Liabilities: |  |  |
Other liabilities | 178,676 | 53,029 |
Parent Company | Nonrelated Party |  |  |
Liabilities: |  |  |
Other liabilities | $ 166,399 | $ 139,150 |

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