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Related Party Transactions - Additional Information (Detail) - USD ($) shares in Millions		12 Months Ended
	May. 23, 2013	Dec. 31, 2015	Dec. 31, 2014
SPC Global RE Advisors LLC [Member]
Related Party Transaction [Line Items]
Consulting agreement terminated date		Sep. 18, 2015
Payments due to related party		$ 0	$ 0
RenRe Ventures [Member]
Related Party Transaction [Line Items]
Repurchase of shares	2
Percentage of outstanding common stock	4.99%

X

- Definition

Carrying amount as of the balance sheet date of obligations due all related parties.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(k)(1))
-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

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-Name Accounting Standards Codification
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-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.17)
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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- Definition

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- Definition

Maximum common stock repurchase ROFR.

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- Definition

Maximum common stock repurchase ROFR percentage.

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- Definition

Related party transaction agreement termination date.

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