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Noncontrolling Interests (Narrative) (Details) - USD ($) $ in Thousands |  | 3 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 01, 2019 | Dec. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018
DaVinci Reinsurance Ltd. |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Redeemable noncontrolling interest, ownership percentage | 21.90% | 22.10% | 21.90% | 22.10%
Noncontrolling interest, increase from sale of parent equity interest | $ 11,600 |  |  |
RenaissanceRe Medici Fund Ltd. |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Redeemable noncontrolling interest, ownership percentage |  | 16.60% | 12.10% | 16.60%
DaVinciRe Holdings Ltd. |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interest, value subscribed | 349,200 |  | $ 274,699 | $ 0
Redemption of shares from redeemable noncontrolling interests |  |  | $ 1,148 | 4,351
DaVinciRe Holdings Ltd. | High |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Share repurchase requests, limit |  |  | 25.00% |
DaVinciRe Holdings Ltd. | Redeemable Noncontrolling Interest |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Share repurchase requests, percent of aggregate shares, limit |  |  | 50.00% |
RenaissanceRe Medici Fund Ltd. |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interest, value subscribed |  |  | $ 236,989 | 208,482
Written notice period for redemption |  |  | 30 days |
Redemption of shares from redeemable noncontrolling interests |  |  | $ 47,401 | 90,490
Vermeer Reinsurance Ltd. |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interest, value subscribed |  |  | $ 355,000 | $ 600,000
Participating, Non-voting Common Shares | Vermeer Reinsurance Ltd. |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interest, value subscribed |  | $ 600,000 |  |
Voting, Non-participating Shares | Vermeer Reinsurance Ltd. |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interest, value subscribed |  | $ 1 |  |
Third-Party Investors | DaVinciRe Holdings Ltd. |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interest, value subscribed | 263,100 |  |  |
RenaissanceRe Holdings Ltd. | DaVinciRe Holdings Ltd. |  |  |  |
Noncontrolling Interest [Line Items] |  |  |  |
Noncontrolling interest, value subscribed | $ 86,100 |  |  |

X
- Definition This item limits the aggregate of all share repurchase requests to 25% of DaVinciRe's capital in any given year and satisfying all applicable regulatory requirements. If total shareholder requests exceed 25% of DaVinciRe's capital, the number of shares repurchased will be reduced among the requesting shareholders pro-rata, based on the amounts desired to be repurchased. + References No definition available. + Details
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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=27012166&loc=d3e187085-122770 + Details
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