Condensed Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands		Jun. 30, 2018	Dec. 31, 2017
Cash and cash equivalents (1)	[1]	$ 434,179	$ 401,719
Restricted cash	[1]	221,688	242,570
Loans held for investment at fair value	[1]	2,358,629	2,932,325
Loans held for investment by the Company at fair value	[1]	9,621	361,230
Loans held for sale by the Company at fair value (1)	[1]	515,307	235,825
Accrued interest receivable	[1]	26,635	33,822
Other assets	[1]	102,396	156,278
Total assets of consolidated variable interest entities		3,949,083	4,640,831
Accrued interest payable	[1]	23,609	32,992
Accrued expenses and other liabilities	[1]	200,098	228,380
Notes, certificates and secured borrowings at fair value (1)	[1]	2,377,080	2,954,768
Payable to securitization note and residual certificate holders	[1]	0	312,123
Payable to credit facilities	[1]	349,232	32,100
Total liabilities of consolidated variable interest entities		3,074,863	3,713,074
Payable to securitization residual certificate holders		$ 0	$ 1,479
Common stock, par value ($ per share)		$ 0.01	$ 0.01
Common stock, shares authorized		900,000,000	900,000,000
Common stock, shares issued		425,466,820	419,756,546
Common stock, shares outstanding		423,184,120	417,473,846
Treasury stock, shares		2,282,700	2,282,700
Consolidated VIEs
Cash and cash equivalents (1)		$ 29,479	$ 0
Restricted cash		37,311	34,370
Loans held for investment at fair value		893,282	1,202,260
Loans held for investment by the Company at fair value		0	350,699
Loans held for sale by the Company at fair value (1)		389,491	60,812
Accrued interest receivable		11,941	15,602
Other assets		2,936	6,324
Total assets of consolidated variable interest entities		1,364,440	1,670,067
Accrued interest payable		9,806	14,789
Accrued expenses and other liabilities		1,227	52
Notes, certificates and secured borrowings at fair value (1)		899,250	1,210,349
Payable to securitization note and residual certificate holders		0	312,123
Payable to credit facilities		249,232	32,100
Total liabilities of consolidated variable interest entities		$ 1,159,515	$ 1,569,413

[1] Includes amounts in consolidated variable interest entities (VIEs) presented separately in the table below.