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Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) $ in Thousands | Total | Common stock | Additional paid-in capital | Retained earnings | Accumulated Other Comprehensive Income (Loss) | Unrealized investment gain | Currency Translation Adjustments | Treasury stock | Noncontrolling interest
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles |  | $ 105,803 | $ 981,104 | $ 9,015,135 | $ (281,955) | $ 90,900 | $ (372,855) | $ (3,167,076) | $ 14,719
Beginning of period at Dec. 31, 2021 |  | 105,803 | 981,104 | 9,015,135 | (281,955) | 90,900 | (372,855) | (3,167,076) | 14,719
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Restricted stock units issued |  |  | (30,751) |  |  |  |  |  |
Restricted stock units expensed |  |  | 34,450 |  |  |  |  |  |
Net income before noncontrolling interests | $ 1,002,970 |  |  | 998,839 |  |  |  |  | 4,131
Dividends ($0.61, $0.10, $1.32 and $0.79 per share, respectively) |  |  |  | (208,737) |  |  |  |  |
Change in unrealized (losses) gains on securities without an allowance for expected credit losses | (1,076,217) |  |  |  |  | (1,055,628) |  |  |
Change in unrealized (losses) gains on securities with an allowance for expected credit losses |  |  |  |  |  | (20,590) |  |  |
Net change in period | (27,637) |  |  |  |  |  | (27,637) |  |
Stock exercised/vested |  |  |  |  |  |  |  | 9,679 |
Stock repurchased |  |  |  |  |  |  |  | (6,570) |
Other | 0 |  |  |  |  |  |  |  |
(Distributions) contributions |  |  |  |  |  |  |  |  | 5,061
Other comprehensive loss, net of tax | $ (1,103,854) |  |  |  | (1,103,854) |  | (27,637) |  | (1)
End of period at Sep. 30, 2022 |  |  | 984,803 | 9,805,237 | (1,385,810) | (985,318) | (400,492) | (3,163,967) | 23,910
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 0.79 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles |  | 105,803 | 1,001,093 | 9,602,948 | (1,029,630) | (669,654) | (359,976) | (3,165,729) | 22,388
Beginning of period at Jun. 30, 2022 |  | 105,803 | 1,001,093 | 9,602,948 | (1,029,630) | (669,654) | (359,976) | (3,165,729) | 22,388
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Restricted stock units issued |  |  | (28,381) |  |  |  |  |  |
Restricted stock units expensed |  |  | 12,091 |  |  |  |  |  |
Net income before noncontrolling interests | $ 230,474 |  |  | 228,879 |  |  |  |  | 1,595
Dividends ($0.61, $0.10, $1.32 and $0.79 per share, respectively) |  |  |  | (26,590) |  |  |  |  |
Change in unrealized (losses) gains on securities without an allowance for expected credit losses | (315,664) |  |  |  |  | (311,659) |  |  |
Change in unrealized (losses) gains on securities with an allowance for expected credit losses |  |  |  |  |  | (4,005) |  |  |
Net change in period | (40,516) |  |  |  |  |  | (40,516) |  |
Stock exercised/vested |  |  |  |  |  |  |  | 8,332 |
Stock repurchased |  |  |  |  |  |  |  | (6,570) |
Other | 0 |  |  |  |  |  |  |  |
(Distributions) contributions |  |  |  |  |  |  |  |  | (73)
Other comprehensive loss, net of tax | $ (356,180) |  |  |  | (356,180) |  | (40,516) |  | 0
End of period at Sep. 30, 2022 |  |  | 984,803 | 9,805,237 | (1,385,810) | (985,318) | (400,492) | (3,163,967) | 23,910
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 0.10 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles |  |  | 984,803 | 9,805,237 | (1,385,810) | (985,318) | (400,492) | (3,163,967) | 23,910
Cumulative effect adjustment resulting from changes in accounting principles | $ 6,768,161 | 105,803 | 997,534 | 10,161,005 | (1,264,581) | (892,905) | (371,676) | (3,251,429) | 19,829
Beginning of period at Dec. 31, 2022 | 6,768,161 | 105,803 | 997,534 | 10,161,005 | (1,264,581) | (892,905) | (371,676) | (3,251,429) | 19,829
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Restricted stock units issued |  |  | (25,228) |  |  |  |  |  |
Restricted stock units expensed |  |  | 35,995 |  |  |  |  |  |
Net income before noncontrolling interests | 984,883 |  |  | 984,020 |  |  |  |  | 863
Dividends ($0.61, $0.10, $1.32 and $0.79 per share, respectively) |  |  |  | (344,328) |  |  |  |  |
Change in unrealized (losses) gains on securities without an allowance for expected credit losses | (50,850) |  |  |  |  | (47,757) |  |  |
Change in unrealized (losses) gains on securities with an allowance for expected credit losses |  |  |  |  |  | (3,094) |  |  |
Net change in period | (7,387) |  |  |  |  |  | (7,387) |  |
Stock exercised/vested |  |  |  |  |  |  |  | 9,461 |
Stock repurchased |  |  |  |  |  |  |  | (430,536) |
Other | (3,899) |  |  |  |  |  |  |  |
(Distributions) contributions |  |  |  |  |  |  |  |  | (6,361)
Other comprehensive loss, net of tax | (58,237) |  |  |  | (58,237) |  | (7,387) |  | (1)
End of period at Sep. 30, 2023 | $ 6,929,909 |  | 1,008,301 | 10,800,697 | (1,322,819) | (943,756) | (379,063) | (3,676,403) | 14,330
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 1.32 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles |  | 105,803 | 1,020,818 | 10,624,518 | (1,181,673) | (825,391) | (356,282) | (3,682,281) | 21,167
Beginning of period at Jun. 30, 2023 |  | $ 105,803 | 1,020,818 | 10,624,518 | (1,181,673) | (825,391) | (356,282) | (3,682,281) | 21,167
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Restricted stock units issued |  |  | (25,226) |  |  |  |  |  |
Restricted stock units expensed |  |  | 12,709 |  |  |  |  |  |
Net income before noncontrolling interests | $ 333,430 |  |  | 333,586 |  |  |  |  | (156)
Dividends ($0.61, $0.10, $1.32 and $0.79 per share, respectively) |  |  |  | (157,407) |  |  |  |  |
Change in unrealized (losses) gains on securities without an allowance for expected credit losses | (118,365) |  |  |  |  | (108,121) |  |  |
Change in unrealized (losses) gains on securities with an allowance for expected credit losses |  |  |  |  |  | (10,244) |  |  |
Net change in period | (22,781) |  |  |  |  |  | (22,781) |  |
Stock exercised/vested |  |  |  |  |  |  |  | 8,469 |
Stock repurchased |  |  |  |  |  |  |  | (2,917) |
Other | 326 |  |  |  |  |  |  |  |
(Distributions) contributions |  |  |  |  |  |  |  |  | (6,681)
Other comprehensive loss, net of tax | (141,146) |  |  |  | (141,146) |  | (22,781) |  | 0
End of period at Sep. 30, 2023 | $ 6,929,909 |  | 1,008,301 | 10,800,697 | (1,322,819) | (943,756) | (379,063) | (3,676,403) | 14,330
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 0.61 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles | $ 6,929,909 |  | $ 1,008,301 | $ 10,800,697 | $ (1,322,819) | $ (943,756) | $ (379,063) | $ (3,676,403) | $ 14,330

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