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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 |  |  | (2,370) |  |  |  |  |  |
Restricted stock units expensed |  |  | 22,359 |  |  |  |  |  |
Net income before noncontrolling interests | $ 772,496 |  |  | 769,960 |  |  |  |  | 2,536
Dividends ($0.11, $0.60, $0.71 and $0.69 per share, respectively) |  |  |  | (182,147) |  |  |  |  |
Change in unrealized (losses) gains on securities without an allowance for expected credit losses | (760,553) |  |  |  |  | (743,969) |  |  |
Change in unrealized gains (losses) on securities with an allowance for expected credit losses |  |  |  |  |  | (16,585) |  |  |
Net change in period | 12,879 |  |  |  |  |  | 12,879 |  |
Stock exercised/vested |  |  |  |  |  |  |  | 1,347 |
Stock repurchased |  |  |  |  |  |  |  | 0 |
Other | 0 |  |  |  |  |  |  |  |
Contributions (distributions) |  |  |  |  |  |  |  |  | 5,134
Other comprehensive loss, net of tax | $ (747,674) |  |  |  | (747,674) |  | 12,879 |  | (1)
End of period at Jun. 30, 2022 |  |  | 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] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 0.69 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles |  | 105,803 | 992,012 | 9,582,790 | (649,229) | (332,646) | (316,583) | (3,166,873) | 23,296
Beginning of period at Mar. 31, 2022 |  | 105,803 | 992,012 | 9,582,790 | (649,229) | (332,646) | (316,583) | (3,166,873) | 23,296
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Restricted stock units issued |  |  | (1,840) |  |  |  |  |  |
Restricted stock units expensed |  |  | 10,921 |  |  |  |  |  |
Net income before noncontrolling interests | $ 179,467 |  |  | 179,322 |  |  |  |  | 145
Dividends ($0.11, $0.60, $0.71 and $0.69 per share, respectively) |  |  |  | (159,164) |  |  |  |  |
Change in unrealized (losses) gains on securities without an allowance for expected credit losses | (337,008) |  |  |  |  | (320,130) |  |  |
Change in unrealized gains (losses) on securities with an allowance for expected credit losses |  |  |  |  |  | (16,878) |  |  |
Net change in period | (43,393) |  |  |  |  |  | (43,393) |  |
Stock exercised/vested |  |  |  |  |  |  |  | 1,144 |
Stock repurchased |  |  |  |  |  |  |  | 0 |
Other | 0 |  |  |  |  |  |  |  |
Contributions (distributions) |  |  |  |  |  |  |  |  | (1,053)
Other comprehensive loss, net of tax | $ (380,401) |  |  |  | (380,401) |  | (43,393) |  | 0
End of period at Jun. 30, 2022 |  |  | 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] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 0.60 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles |  |  | 1,001,093 | 9,602,948 | (1,029,630) | (669,654) | (359,976) | (3,165,729) | 22,388
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 |  |  | (2) |  |  |  |  |  |
Restricted stock units expensed |  |  | 23,286 |  |  |  |  |  |
Net income before noncontrolling interests | 651,453 |  |  | 650,434 |  |  |  |  | 1,019
Dividends ($0.11, $0.60, $0.71 and $0.69 per share, respectively) |  |  |  | (186,921) |  |  |  |  |
Change in unrealized (losses) gains on securities without an allowance for expected credit losses | 67,515 |  |  |  |  | 60,364 |  |  |
Change in unrealized gains (losses) on securities with an allowance for expected credit losses |  |  |  |  |  | 7,150 |  |  |
Net change in period | 15,394 |  |  |  |  |  | 15,394 |  |
Stock exercised/vested |  |  |  |  |  |  |  | 992 |
Stock repurchased |  |  |  |  |  |  |  | (427,619) |
Other | (4,225) |  |  |  |  |  |  |  |
Contributions (distributions) |  |  |  |  |  |  |  |  | 320
Other comprehensive loss, net of tax | 82,909 |  |  |  | 82,909 |  | 15,394 |  | (1)
End of period at Jun. 30, 2023 | $ 6,908,352 |  | 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] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 0.71 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles |  | 105,803 | 1,008,128 | 10,296,539 | (1,078,917) | (712,107) | (366,810) | (3,387,538) | 21,608
Beginning of period at Mar. 31, 2023 |  | $ 105,803 | 1,008,128 | 10,296,539 | (1,078,917) | (712,107) | (366,810) | (3,387,538) | 21,608
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Restricted stock units issued |  |  | 1,198 |  |  |  |  |  |
Restricted stock units expensed |  |  | 11,492 |  |  |  |  |  |
Net income before noncontrolling interests | $ 355,724 |  |  | 356,308 |  |  |  |  | (584)
Dividends ($0.11, $0.60, $0.71 and $0.69 per share, respectively) |  |  |  | (28,329) |  |  |  |  |
Change in unrealized (losses) gains on securities without an allowance for expected credit losses | (113,284) |  |  |  |  | (116,978) |  |  |
Change in unrealized gains (losses) on securities with an allowance for expected credit losses |  |  |  |  |  | 3,694 |  |  |
Net change in period | 10,528 |  |  |  |  |  | 10,528 |  |
Stock exercised/vested |  |  |  |  |  |  |  | 597 |
Stock repurchased |  |  |  |  |  |  |  | (292,467) |
Other | (2,873) |  |  |  |  |  |  |  |
Contributions (distributions) |  |  |  |  |  |  |  |  | 143
Other comprehensive loss, net of tax | (102,756) |  |  |  | (102,756) |  | 10,528 |  | 0
End of period at Jun. 30, 2023 | $ 6,908,352 |  | 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] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 0.11 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles | $ 6,908,352 |  | $ 1,020,818 | $ 10,624,518 | $ (1,181,673) | $ (825,391) | $ (356,282) | $ (3,682,281) | $ 21,167

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