Consolidated Statements of Cash Flows (Unaudited) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities
Net income	$ 15,696	$ 156,873
Adjustments to reconcile net income to net cash provided by operating activities
Net impairments recognized in earnings		160
Recovery of provision for loan losses		(2,819)
Valuation allowance on loans held-for-sale	(1,200)
Unrealized gain on investments at fair value	(4,464)
Gain on extinguishment of debt	(38)
Fair value adjustment on CT Legacy Asset		(19,645)
Gain on deconsolidation of subsidiary		(146,380)
Income from equity investments in unconsolidated subsidiaries		(1,312)
Distributions of income from unconsolidated subsidiaries		1,933
Distributions from CT Legacy Asset		9,221
Non-cash compensation expense	2,138	1,788
Amortization of premiums/discounts on loans and securities and deferred interest on loans	(3,265)	(669)
Amortization of deferred gains and losses on settlement of swaps		(56)
Amortization of deferred financing costs and premiums/discounts on debt obligations	1,381	10,747
Loss on interest rate swaps not designated as cash flow hedges	4	2,772
Changes in assets and liabilities, net
Accrued interest receivable	299	(4,765)
Deferred income taxes		(1,826)
Prepaid expenses and other assets	883	2,764
Accounts payable and accrued expenses	3,011	2,812
Net cash provided by operating activities	14,445	11,598
Cash flows from investing activities
Origination/purchase of loans receivable	(1,385,729)
Origination and exit fees received on loans receivable	9,036
Principal collections and proceeds from securities	349	40,344
Distributions from equity investments	3,518
Principal collections and proceeds from the sale of loans receivable	239,282	91,889
Contributions to unconsolidated subsidiaries		(4,030)
Distributions from unconsolidated subsidiaries		1,006
Increase in restricted cash	(62,150)	(3,160)
Net cash (used in) provided by investing activities	(195,694)	126,049
Cash flows from financing activities
Borrowings under repurchase obligations	891,608	123,977
Repayments under repurchase obligations	(268,782)	(58,464)
Repayments under mezzanine loan		(63,000)
Repayment of securitized debt obligations	(64,943)	(136,078)
Payment of deferred financing costs	(5,744)
Contributions from non-controlling interests	15,000
Purchase of and distributions to non-controlling interests	(18,717)	(8)
Settlement of interest rate swaps	(6,123)
Vesting of restricted class A common stock		(25)
Proceeds from issuance of common stock	633,810
Net cash provided by (used in) financing activities	1,176,109	(133,598)
Net (decrease) increase in cash and cash equivalents	(5,140)	4,049
Cash and cash equivalents at beginning of period	15,423	34,818
Cash and cash equivalents at end of period	10,283	38,867
Supplemental disclosure of cash flows information
Payments of interest	(4,801)	(21,922)
Payments of income taxes	(218)	(788)
Supplemental disclosure of non-cash investing and financing activities
(Consolidation) deconsolidation of subsidiaries	$ (38,913)	$ 122,312