Fair Values - Reconciliation of Beginning and Ending Balances of Assets Measured at Fair Value on a Recurring Basis Using Level 3 Inputs (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Valuation allowance on loans held-for-sale	$ (1,259)		$ 1,456
Gain on investments at fair value		(6,000)
Loans Held-for-Sale, Net [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period
Consolidation of CT Legacy Partners
Transfer from loans receivable, net	2,000
Transfer from loans receivable, at fair value
Deferred interest
Proceeds from investments	(3,259)
Valuation allowance on loans held-for-sale	1,259
Gain on investments at fair value
End of Period
Loans Receivable [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period
Consolidation of CT Legacy Partners	150,332
Transfer from loans receivable, net
Transfer from loans receivable, at fair value	(6,813)
Deferred interest	984
Proceeds from investments	(110,654)
Valuation allowance on loans held-for-sale
Gain on investments at fair value	6,816
End of Period	40,665
Other Assets, at Fair Value [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period
Consolidation of CT Legacy Partners	14,448
Transfer from loans receivable, net
Transfer from loans receivable, at fair value	6,813
Deferred interest
Proceeds from investments	(7,981)
Valuation allowance on loans held-for-sale
Gain on investments at fair value	516
End of Period	13,796
Investment in CT Legacy Asset [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning of Period	132,000
Consolidation of CT Legacy Partners	(132,000)
Transfer from loans receivable, net
Transfer from loans receivable, at fair value
Deferred interest
Proceeds from investments
Valuation allowance on loans held-for-sale
Gain on investments at fair value
End of Period