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Noncontrolling Interests (Schedule of Redeemable Noncontrolling Interest Activity) (Details) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Jun. 01, 2019 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Activity in redeemable noncontrolling interest |  |  |  |
Beginning balance |  | $ 3,071,308 |  |
Comprehensive income: |  |  |  |
Net income attributable to redeemable noncontrolling interests |  | 230,653 | $ 201,469 | $ 41,553
Ending balance |  | 3,388,319 | 3,071,308 |
DaVinciRe Holdings Ltd. |  |  |  |
Activity in redeemable noncontrolling interest |  |  |  |
Beginning balance |  | 1,435,581 | 1,034,946 |
Redemption of shares from redeemable noncontrolling interests, net of adjustments |  | 1,450 | (1,148) |
Sale of shares to redeemable noncontrolling interests | $ 349,200 | 9,991 | 274,699 |
Comprehensive income: |  |  |  |
Net income attributable to redeemable noncontrolling interests |  | 113,671 | 127,084 | 27,638
Ending balance |  | 1,560,693 | 1,435,581 | 1,034,946
RenaissanceRe Medici Fund Ltd. |  |  |  |
Activity in redeemable noncontrolling interest |  |  |  |
Beginning balance |  | 632,112 | 416,765 |
Redemption of shares from redeemable noncontrolling interests, net of adjustments |  | (107,386) | (47,401) |
Sale of shares to redeemable noncontrolling interests |  | 137,303 | 236,989 |
Comprehensive income: |  |  |  |
Net income attributable to redeemable noncontrolling interests |  | 55,970 | 25,759 | 13,926
Ending balance |  | 717,999 | 632,112 | 416,765
Vermeer Reinsurance Ltd. |  |  |  |
Activity in redeemable noncontrolling interest |  |  |  |
Beginning balance |  | 1,003,615 | 599,989 |
Sale of shares to redeemable noncontrolling interests |  | 45,000 | 355,000 |
Comprehensive income: |  |  |  |
Net income attributable to redeemable noncontrolling interests |  | 61,012 | 48,626 | (11)
Ending balance |  | $ 1,109,627 | $ 1,003,615 | $ 599,989

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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 -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 23 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4569655-111683 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 24 -URI http://asc.fasb.org/extlink&oid=108774443&loc=SL4616395-111683 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 + 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 -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (16)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 15 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph (12)(c) -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 480 -SubTopic 10 -Section S99 -Paragraph 3A -Subparagraph 14 -URI http://asc.fasb.org/extlink&oid=65877616&loc=SL6540498-122764 + Details
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