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NONCONTROLLING INTERESTS - Narrative (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
DaVinci Reinsurance Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | $ 69,700,000 | $ 300,000,000.0 |
Proceeds from noncontrolling interests | 0 |  |
Third-Party Investors |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Redemption of shares from redeemable noncontrolling interest | 26,900,000 | 175,000,000.0 |
RenaissanceRe Holdings Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Proceeds from noncontrolling interests |  | 70,700,000 |
Payments to noncontrolling interests |  | 59,400,000 |
DaVinci Holdings Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Proceeds from noncontrolling interests |  | 0 |
Payments to noncontrolling interests | 26,900,000 | 355,600,000 |
Medici |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Proceeds from noncontrolling interests | 25,500,000 |  |
Payments to noncontrolling interests | 264,100,000 |  |
Fontana Third Party Investors |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | 100,000,000.0 | 50,000,000 |
Redemption of shares from redeemable noncontrolling interest | 72,000,000.0 |  |
Proceeds from noncontrolling interests | 0 | 0 |
Payments to noncontrolling interests | 64,800,000 |  |
DaVinci Holdings Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Redemption of shares from redeemable noncontrolling interest | $ 26,929,000 | 355,702,000 |
DaVinci Holdings Ltd. | RenaissanceRe Holdings Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Payments to noncontrolling interests |  | 69,400,000 |
DaVinci Holdings Ltd. | DaVinci Holdings Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Payments to noncontrolling interests |  | 355,600,000 |
DaVinci Holdings Ltd. | Maximum |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Share repurchase requests, limit | 25.00% |  |
Medici |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | $ 61,603,000 | 146,242,000 |
Redemption of shares from redeemable noncontrolling interest | $ 238,795,000 | 45,567,000 |
Redemption provision, notice period | 30 days |  |
Medici | Third-Party Investors |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | $ 111,600,000 | 146,200,000 |
Redemption of shares from redeemable noncontrolling interest | 378,800,000 | 45,600,000 |
Payments of dividends | 15,300,000 | 18,400,000 |
Medici | RenaissanceRe Holdings Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | 50,100,000 |  |
Redemption of shares from redeemable noncontrolling interest | 140,000,000.0 |  |
RenaissanceRe Medici UCITS Fund |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Transfer in kind from existing investors | 316,500,000 |  |
RenaissanceRe Medici UCITS Fund | Third-Party Investors |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | 341,500,000 |  |
RenaissanceRe Medici UCITS Fund | RenaissanceRe Holdings Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | 140,000,000.0 |  |
Vermeer |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | 0 |  |
Vermeer | PFZW |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Payments of dividends | 0 | 175,000,000.0 |
Fontana |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | 129,155,000 | 100,000,000 |
Redemption of shares from redeemable noncontrolling interest | 72,044,000 | 0 |
Fontana | Third-Party Investors |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | 100,000,000.0 | 100,000,000.0 |
Fontana | RenaissanceRe Holdings Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Sale of shares to redeemable noncontrolling interests | $ 70,800,000 | $ 50,000,000 |
DaVinci Reinsurance Ltd. |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Noncontrolling ownership percentage | 24.30% | 23.90% | 25.40%
Medici |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Noncontrolling ownership percentage | 13.00% | 11.40% |
Vermeer | Medici | Voting, Non-participating Shares |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Parent company ownership in redeemable noncontrolling interest | 100.00% |  |
Vermeer | PFZW | Participating, Non-voting Common Shares |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Parent company ownership in redeemable noncontrolling interest | 100.00% |  |
Fontana |  |  |
Redeemable Noncontrolling Interest [Line Items] |  |  |
Noncontrolling ownership percentage | 28.70% | 26.50% |

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- 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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