Loans Receivable, at Fair Value - Additional Information (Detail) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Accounts, Notes, Loans and Financing Receivable [Line Items]
Principal balance aggregate fair value	$ 40,665,000
Nonaccrual Status [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loans	3
Principal balance	98,300,000
Fair value	0
CT Legacy Partners [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Portfolio of loans aggregate principal	145,300,000
Principal balance aggregate fair value	$ 40,665,000	$ 0
Number of loans	7