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Debt and Credit Facilities (Summary of Debt Obligations) (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Fair Value	$ 1,231,249	$ 1,261,069
Carrying Value	$ 1,136,783	1,136,265
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 | 3.600% Senior Notes due 2029 | RenaissanceRe Finance, Inc.
Debt Instrument [Line Items]
Fair Value	$ 431,360	453,932
Carrying Value	392,619	392,391
Senior Notes | 3.450% Senior Notes due 2027 | RenaissanceRe Finance, Inc.
Debt Instrument [Line Items]
Fair Value	323,262	329,661
Carrying Value	296,909	296,787
Senior Notes | 3.700% Senior Notes due 2025 | RenaissanceRe Finance, Inc.
Debt Instrument [Line Items]
Fair Value	310,881	315,273
Carrying Value	298,519	298,428
Senior Notes | 4.750% Senior Notes due 2025 (DaVinciRe) | DaVinciRe Holdings Ltd.
Debt Instrument [Line Items]
Fair Value	165,746	162,203
Carrying Value	$ 148,736	$ 148,659

X

- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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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.

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The fair value amount of long-term debt whether such amount is presented as a separate caption or as a parenthetical disclosure. Additionally, this element may be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements. The element may be used in both the balance sheet and disclosure in the same submission.

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