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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 | $ 977,215 | $ 8,348,381 | $ (62,172) | $ 289,714 | $ (351,886) | $ (3,058,425) | $ 14,995
Beginning of period at Dec. 31, 2020 |  | 105,803 | 977,215 | 8,348,381 | (62,172) | 289,714 | (351,886) | (3,058,425) | 14,995
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Restricted stock units issued |  |  | (28,669) |  |  |  |  |  |
Restricted stock units expensed |  |  | 34,486 |  |  |  |  |  |
Net income before noncontrolling interests | $ 736,712 |  |  | 728,060 |  |  |  |  | 8,652
Dividends ($0.10, $0.09, $0.79 and $0.59 per share, respectively) |  |  |  | (156,107) |  |  |  |  |
Change in unrealized losses on securities without an allowance for expected credit losses | (102,454) |  |  |  |  | (112,852) |  |  |
Change in unrealized (losses) gains on securities with an allowance for expected credit losses |  |  |  |  |  | 10,397 |  |  |
Net change in period | (26,235) |  |  |  |  |  | (26,235) |  |
Stock exercised/vested |  |  |  |  |  |  |  | 10,985 |
Stock repurchased |  |  |  |  |  |  |  | (122,426) |
(Contributions) distributions |  |  |  |  |  |  |  |  | (8,376)
Other comprehensive loss, net of tax | $ (128,689) |  |  |  | (128,689) |  | (26,235) |  | (1)
End of period at Sep. 30, 2021 |  |  | 983,032 | 8,920,334 | (190,862) | 187,259 | (378,121) | (3,169,866) | 15,270
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 0.59 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles |  | 105,803 | 999,898 | 8,682,088 | (122,444) | 222,855 | (345,299) | (3,087,069) | 9,678
Beginning of period at Jun. 30, 2021 |  | 105,803 | 999,898 | 8,682,088 | (122,444) | 222,855 | (345,299) | (3,087,069) | 9,678
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Restricted stock units issued |  |  | (28,741) |  |  |  |  |  |
Restricted stock units expensed |  |  | 11,875 |  |  |  |  |  |
Net income before noncontrolling interests | $ 267,318 |  |  | 261,297 |  |  |  |  | 6,021
Dividends ($0.10, $0.09, $0.79 and $0.59 per share, respectively) |  |  |  | (23,051) |  |  |  |  |
Change in unrealized losses on securities without an allowance for expected credit losses | (35,596) |  |  |  |  | (35,707) |  |  |
Change in unrealized (losses) gains on securities with an allowance for expected credit losses |  |  |  |  |  | 111 |  |  |
Net change in period | (32,822) |  |  |  |  |  | (32,822) |  |
Stock exercised/vested |  |  |  |  |  |  |  | 9,946 |
Stock repurchased |  |  |  |  |  |  |  | (92,743) |
(Contributions) distributions |  |  |  |  |  |  |  |  | (429)
Other comprehensive loss, net of tax | $ (68,418) |  |  |  | (68,418) |  | (32,822) |  | 0
End of period at Sep. 30, 2021 |  |  | 983,032 | 8,920,334 | (190,862) | 187,259 | (378,121) | (3,169,866) | 15,270
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |
Common stock dividends, per share, cash paid (in dollars per share) | $ 0.09 |  |  |  |  |  |  |  |
Cumulative effect adjustment resulting from changes in accounting principles |  |  | 983,032 | 8,920,334 | (190,862) | 187,259 | (378,121) | (3,169,866) | 15,270
Cumulative effect adjustment resulting from changes in accounting principles | $ 6,667,730 | 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 | 6,667,730 | 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 ($0.10, $0.09, $0.79 and $0.59 per share, respectively) |  |  |  | (208,737) |  |  |  |  |
Change in unrealized losses 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) |
(Contributions) distributions |  |  |  |  |  |  |  |  | 5,061
Other comprehensive loss, net of tax | (1,103,854) |  |  |  | (1,103,854) |  | (27,637) |  | (1)
End of period at Sep. 30, 2022 | $ 6,369,976 |  | 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 ($0.10, $0.09, $0.79 and $0.59 per share, respectively) |  |  |  | (26,590) |  |  |  |  |
Change in unrealized losses 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) |
(Contributions) distributions |  |  |  |  |  |  |  |  | (73)
Other comprehensive loss, net of tax | (356,180) |  |  |  | (356,180) |  | (40,516) |  | 0
End of period at Sep. 30, 2022 | $ 6,369,976 |  | 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 | $ 6,369,976 |  | $ 984,803 | $ 9,805,237 | $ (1,385,810) | $ (985,318) | $ (400,492) | $ (3,163,967) | $ 23,910

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