CONSOLIDATED STATEMENTS OF INCOME (LOSS) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Interest Income
Residential loans	$ 44,921	$ 77,070	$ 179,331	$ 230,308
Business purpose residential loans	55,637	5,446	161,710	12,231
Multifamily loans	4,918	36,829	49,960	94,134
Real estate securities	10,135	23,047	38,471	72,514
Other interest income	6,371	7,725	20,537	20,513
Total interest income	121,982	150,117	450,009	429,700
Interest Expense
Short-term debt	(5,145)	(24,239)	(45,119)	(70,732)
Asset-backed securities issued	(66,514)	(71,065)	(232,316)	(196,473)
Long-term debt	(28,752)	(21,300)	(72,313)	(64,895)
Total interest expense	(100,411)	(116,604)	(349,748)	(332,100)
Net Interest Income	21,571	33,513	100,261	97,600
Non-interest Income (Loss)
Mortgage banking activities, net	59,395	9,515	24,511	40,984
Investment fair value changes, net	107,047	11,444	(611,557)	34,741
Other income, net	(114)	4,356	3,979	13,840
Realized gains, net	602	4,714	30,419	18,227
Total non-interest income (loss), net	166,930	30,029	(552,648)	107,792
General and administrative expenses	(27,630)	(24,899)	(84,832)	(70,722)
Loan acquisition costs	(2,158)	(1,916)	(7,716)	(5,507)
Other expenses	(7,788)	(2,531)	(104,286)	(6,021)
Net Income (Loss) before (Provision for) Benefit from Income Taxes	150,925	34,196	(649,221)	123,142
(Provision for) benefit from income taxes	(9,113)	114	13,079	(3,102)
Net Income (Loss)	$ 141,812	$ 34,310	$ (636,142)	$ 120,040
Basic (loss) earnings per common share (in dollars per share)	$ 1.21	$ 0.33	$ (5.60)	$ 1.20
Diluted (loss) earnings per common share (in dollars per share)	$ 1.02	$ 0.31	$ (5.60)	$ 1.09
Basic weighted average shares outstanding (in shares)	113,403,102	101,872,126	113,952,308	97,214,064
Diluted weighted average shares outstanding (in shares)	141,969,977	136,522,709	113,952,308	131,202,689