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Consolidated Statements of Changes in Shareholders' Equity - USD ($) $ in Thousands | Total | Preference shares | Common shares | Additional paid-in capital | Accumulated other comprehensive income (loss) | Retained earnings
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2020 |  | $ 525,000 | $ 50,811 | $ 1,623,206 | $ (12,642) | $ 5,373,873
Statement of Changes in Stockholders' Equity |  |  |  |  |  |
Issuance of shares (Note 12) |  | 500,000 | 0 | 0 |  |
Repurchase of shares (Note 12) |  | (275,000) | (6,579) | (1,024,751) |  |
Offering expenses (Note 12) |  |  |  | (11,347) |  |
Change in redeemable noncontrolling interest |  |  |  | (6,994) |  |
Exercise of options and issuance of restricted stock awards (Notes 12 and 17) |  |  | 213 | 28,007 |  |
Change in net unrealized gains (loss) on investments, net of tax | $ (2,492) |  |  |  | (2,492) |
Foreign currency translation adjustments, net of tax | 4,225 |  |  |  |  |
Net income (loss) | (103,440) |  |  |  |  |
Net (income) loss attributable to redeemable noncontrolling interests (Note 10) | 63,285 |  |  |  |  | 63,285
Dividends on common shares (Note 12) | (67,800) |  |  |  |  | (67,828)
Dividends on preference shares (Note 12) | (33,266) |  |  |  |  | (33,266)
Ending balance at Dec. 31, 2021 | 6,624,281 | 750,000 | 44,445 | 608,121 | (10,909) | 5,232,624
Statement of Changes in Stockholders' Equity |  |  |  |  |  |
Issuance of shares (Note 12) |  | 0 | 0 | 0 |  |
Repurchase of shares (Note 12) |  | 0 | (1,051) | (161,788) |  |
Offering expenses (Note 12) |  |  |  | 0 |  |
Change in redeemable noncontrolling interest |  |  |  | (5,549) |  |
Exercise of options and issuance of restricted stock awards (Notes 12 and 17) |  |  | 324 | 34,863 |  |
Change in net unrealized gains (loss) on investments, net of tax | (4,923) |  |  |  | (4,923) |
Foreign currency translation adjustments, net of tax | 370 |  |  |  | 370 |
Net income (loss) | (1,159,816) |  |  |  |  |
Net (income) loss attributable to redeemable noncontrolling interests (Note 10) | 98,613 |  |  |  |  | 98,613
Dividends on common shares (Note 12) | (64,700) |  |  |  |  | (64,675)
Dividends on preference shares (Note 12) | (35,375) |  |  |  |  | (35,375)
Ending balance at Dec. 31, 2022 | 5,325,274 | 750,000 | 43,718 | 475,647 | (15,462) | 4,071,371
Statement of Changes in Stockholders' Equity |  |  |  |  |  |
Issuance of shares (Note 12) |  | 0 | 8,568 | 1,628,209 |  |
Repurchase of shares (Note 12) |  | 0 | 0 | 0 |  |
Offering expenses (Note 12) |  |  |  | 0 |  |
Change in redeemable noncontrolling interest |  |  |  | (1,404) |  |
Exercise of options and issuance of restricted stock awards (Notes 12 and 17) |  |  | 408 | 42,007 |  |
Change in net unrealized gains (loss) on investments, net of tax | 1,082 |  |  |  | 1,082 |
Foreign currency translation adjustments, net of tax | 169 |  |  |  | 169 |
Net income (loss) | 3,620,127 |  |  |  |  |
Net (income) loss attributable to redeemable noncontrolling interests (Note 10) | (1,058,995) |  |  |  |  | (1,058,995)
Dividends on common shares (Note 12) | (75,100) |  |  |  |  | (75,112)
Dividends on preference shares (Note 12) | (35,375) |  |  |  |  | (35,375)
Ending balance at Dec. 31, 2023 | $ 9,454,958 | $ 750,000 | $ 52,694 | $ 2,144,459 | $ (14,211) | $ 6,522,016

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