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Debt and Credit Facilities (Summary of Debt Obligations) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Debt Instrument [Line Items]
Long-term debt, fair value	$ 973,342	$ 279,000
Long-term debt	966,079	249,522
RenaissanceRe Finance, Inc. | 3.700% Senior Notes Due April 1, 2025
Debt Instrument [Line Items]
Long-term debt, fair value	287,100	0
Long-term debt	299,445	0
RenRe North America Holdings Inc | 5.75% Senior Notes Due March 15, 2020
Debt Instrument [Line Items]
Long-term debt, fair value	270,000	279,000
Long-term debt	249,614	249,522
Platinum Underwriters Finance, Inc | Series B 7.50% Notes Due June 1, 2017
Debt Instrument [Line Items]
Long-term debt, fair value	267,500	0
Long-term debt	268,196	0
DaVinciRe Holdings Ltd. | 4.750% Senior Notes Due May 1, 2025
Debt Instrument [Line Items]
Long-term debt, fair value	148,742	0
Long-term debt	$ 148,824	$ 0

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Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. 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/presentationRef
-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=6876686&loc=d3e534808-122878

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-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=6877327&loc=d3e13212-122682

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.16)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 20, 22
-Article 5

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