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Noncontrolling Interests - Schedule of Redeemable Noncontrolling Interest Activity (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Activity in redeemable noncontrolling interest |  |  |
Beginning balance | $ 4,535,389 |  |
Net income (loss) attributable to redeemable noncontrolling interest | 1,058,995 | $ (98,613) | $ (63,285)
Ending balance | 6,100,831 | 4,535,389 |
DaVinci Holdings Ltd. |  |  |
Activity in redeemable noncontrolling interest |  |  |
Beginning balance | 1,740,300 | 1,499,451 |
Redemption of shares from redeemable noncontrolling interests | (123,272) | (161,570) |
Sale of shares to redeemable noncontrolling interests, net of adjustments | 250,000 | 500,000 |
Net income (loss) attributable to redeemable noncontrolling interest | 545,812 | (65,514) | (102,932)
Ending balance | 2,541,482 | 1,740,300 | 1,499,451
DaVinci Holdings Ltd. | Third-Party Investors And RenaissanceRe |  |  |
Activity in redeemable noncontrolling interest |  |  |
Sale of shares to redeemable noncontrolling interests, net of adjustments | 378,642 | 467,933 |
Medici |  |  |
Activity in redeemable noncontrolling interest |  |  |
Beginning balance | 1,036,218 | 856,820 |
Redemption of shares from redeemable noncontrolling interests | (107,549) | (100,234) |
Sale of shares to redeemable noncontrolling interests, net of adjustments | 482,310 | 350,136 |
Net income (loss) attributable to redeemable noncontrolling interest | 239,250 | (70,504) | 1,492
Ending balance | 1,650,229 | 1,036,218 | 856,820
Vermeer Reinsurance Ltd. |  |  |
Activity in redeemable noncontrolling interest |  |  |
Beginning balance | 1,490,840 | 1,197,782 |
Redemption of shares from redeemable noncontrolling interests | (175,000) | 0 |
Sale of shares to redeemable noncontrolling interests, net of adjustments | 0 | 250,000 |
Net income (loss) attributable to redeemable noncontrolling interest | 239,457 | 43,058 | 38,155
Ending balance | 1,555,297 | 1,490,840 | 1,197,782
Fontana Holdings L.P. |  |  |
Activity in redeemable noncontrolling interest |  |  |
Beginning balance | 268,031 | 0 |
Sale of shares to redeemable noncontrolling interests, net of adjustments | 51,316 | 273,684 |
Net income (loss) attributable to redeemable noncontrolling interest | 34,476 | (5,653) | 0
Ending balance | $ 353,823 | $ 268,031 | $ 0

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- Definition Decrease in noncontrolling interest (for example, but not limited to, redeeming or purchasing the interests of noncontrolling shareholders, issuance of shares (interests) by the non-wholly owned subsidiary to the parent entity for other than cash, and a buyback of shares (interest) by the non-wholly owned subsidiary from the noncontrolling interests). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 810 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 23 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481231/810-10-45-23 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 24 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481231/810-10-45-24 + Details
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- Definition Amount of Net Income (Loss) attributable to redeemable noncontrolling interest. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.19) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
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- Definition As of the reporting date, the aggregate carrying amount of all noncontrolling interests which are redeemable by the (parent) entity (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the (parent) entity. This item includes noncontrolling interest holder's ownership (or holders' ownership) regardless of the type of equity interest (common, preferred, other) including all potential organizational (legal) forms of the investee entity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Subparagraph (12)(c) -Section S99 -Paragraph 3A -Publisher FASB -URI https://asc.fasb.org//1943274/2147480244/480-10-S99-3A Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Subparagraph 14 -Paragraph 3A -Section S99 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480244/480-10-S99-3A Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Subparagraph 15 -Paragraph 3A -Section S99 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480244/480-10-S99-3A Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Subparagraph (16)(c) -Paragraph 3A -Section S99 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480244/480-10-S99-3A + Details
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