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Debt and Credit Facilities (Summary of Debt Obligations) (Details) - USD ($) $ in Thousands | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Debt Instrument [Line Items] |  |
Fair Value | $ 1,261,404 | $ 1,468,618
Carrying Value | $ 1,135,740 | 1,384,105
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% |
5.75% Senior Notes due 2020 |  |
Debt Instrument [Line Items] |  |
Stated interest rate | 5.75% |
4.750% Senior Notes due 2025 (DaVinciRe) | DaVinciRe Holdings Ltd. |  |
Debt Instrument [Line Items] |  |
Stated interest rate | 4.75% |
Senior Notes | 3.600% Senior Notes due 2029 | RenaissanceRe Finance, Inc. |  |
Debt Instrument [Line Items] |  |
Fair Value | $ 451,056 | 424,920
Carrying Value | 392,161 | 391,475
Senior Notes | 3.450% Senior Notes due 2027 | RenaissanceRe Finance, Inc. |  |
Debt Instrument [Line Items] |  |
Fair Value | 329,331 | 314,070
Carrying Value | 296,662 | 296,292
Senior Notes | 3.700% Senior Notes due 2025 | RenaissanceRe Finance, Inc. |  |
Debt Instrument [Line Items] |  |
Fair Value | 316,536 | 318,567
Carrying Value | 298,335 | 298,057
Senior Notes | 5.75% Senior Notes due 2020 | RenaissanceRe Finance, Inc. |  |
Debt Instrument [Line Items] |  |
Fair Value | 0 | 251,030
Carrying Value | 0 | 249,931
Senior Notes | 4.750% Senior Notes due 2025 (DaVinciRe) | DaVinciRe Holdings Ltd. |  |
Debt Instrument [Line Items] |  |
Fair Value | 164,481 | 160,031
Carrying Value | $ 148,582 | $ 148,350

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- Definition Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(3) -URI http://asc.fasb.org/extlink&oid=120520924&loc=SL6031897-161870 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)) -URI http://asc.fasb.org/extlink&oid=120400017&loc=d3e572229-122910 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=120398452&loc=d3e534808-122878 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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