Service Agreements and Related Party Transactions - Additional Information (Detail) (USD $)	9 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Mar. 19, 2012
Related Party Transaction [Line Items]
Expenses incurred under the agreements	$ 1,500,000
Description of fee			Fee equal to the product of (x) the ending dollar amount of assets under management during the calendar month in question and (y) .002 divided by 12
Administrative services agreement fee			$ 110,000
Pro Rata Share of the Common Stock Election		10,000,000
Percentage of Pro Rata Share of the Common Stock Election		5.00%
Percentage of interest in Litigation Proceeds		50.00%
Principal amount of Runoff Notes		$ 1.00