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DEBT AND CREDIT FACILITIES - Summary of Debt Obligations (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Debt Instrument [Line Items] |  |
Long-term debt | $ 1,100,000 | $ 1,100,000
Fair Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 1,097,468 | 1,110,649
Carrying Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 1,140,960 | 1,170,442
3.600% Senior Notes due 2029 |  |
Debt Instrument [Line Items] |  |
Stated interest rate | 3.60% |
3.450% Senior Notes due 2027 |  |
Debt Instrument [Line Items] |  |
Stated interest rate | 3.45% |
3.700% Senior Notes due 2025 |  |
Debt Instrument [Line Items] |  |
Stated interest rate | 3.70% |
4.750% Senior Notes due 2025 (DaVinciRe) | DaVinciRe Holdings Ltd. |  |
Debt Instrument [Line Items] |  |
Stated interest rate | 4.75% |
Senior Notes | Fair Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 1,097,468 | 1,080,649
Senior Notes | Carrying Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 1,140,960 | 1,140,442
Senior Notes | 3.600% Senior Notes due 2029 | RenaissanceRe Finance, Inc. | Fair Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 371,676 | 362,644
Senior Notes | 3.600% Senior Notes due 2029 | RenaissanceRe Finance, Inc. | Carrying Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 394,448 | 394,221
Senior Notes | 3.450% Senior Notes due 2027 | RenaissanceRe Finance, Inc. | Fair Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 284,241 | 280,506
Senior Notes | 3.450% Senior Notes due 2027 | RenaissanceRe Finance, Inc. | Carrying Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 297,898 | 297,775
Senior Notes | 3.700% Senior Notes due 2025 | RenaissanceRe Finance, Inc. | Fair Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 293,463 | 290,874
Senior Notes | 3.700% Senior Notes due 2025 | RenaissanceRe Finance, Inc. | Carrying Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 299,259 | 299,168
Senior Notes | 4.750% Senior Notes due 2025 (DaVinciRe) | DaVinciRe Holdings Ltd. | Fair Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 148,088 | 146,625
Senior Notes | 4.750% Senior Notes due 2025 (DaVinciRe) | DaVinciRe Holdings Ltd. | Carrying Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 149,355 | 149,278
Line of Credit | Medici | Fair Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | 0 | 30,000
Line of Credit | Medici | Carrying Value |  |
Debt Instrument [Line Items] |  |
Long-term debt | $ 0 | $ 30,000

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