Related Party Transactions - Additional Information (Detail) - SPC Global RE Advisors LLC [Member] - USD ($)	9 Months Ended
Sep. 30, 2015	Dec. 31, 2014
Related Party Transaction [Line Items]
Payments due to related party	$ 0	$ 0
Consulting agreement terminated date	Sep. 18, 2015

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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant