CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net interest income:
Interest income	[1]	$ 306,436	$ 288,644	$ 603,567	$ 539,988
Interest expense	[2]	161,266	137,955	310,518	248,186
Net interest income		145,170	150,689	293,049	291,802
Other-than-temporary impairments:
Total other-than-temporary impairment losses		(805)	(749)	(1,099)	(3,462)
Portion of loss recognized in other comprehensive income		(8,326)	(12,760)	(9,190)	(28,748)
Net other-than-temporary credit impairment losses		(9,131)	(13,509)	(10,289)	(32,210)
Other investment gains (losses):
Net unrealized gains (losses) on derivatives		25,895	5,802	107,314	10,698
Realized gains (losses) on terminations of interest rate swaps		0	(16,143)	0	(16,143)
Net realized gains (losses) on derivatives		(1,393)	(11,481)	11,693	(20,839)
Net gains (losses) on derivatives		24,502	(21,822)	119,007	(26,284)
Net unrealized gains (losses) on financial instruments at fair value		(18,364)	67,762	(3,898)	140,005
Net realized gains (losses) on sales of investments		2,167	4,541	2,167	9,708
Gains (losses) on extinguishment of debt		387	(48,014)	10,057	(48,014)
Total other gains (losses)		8,692	2,467	127,333	75,415
Other expenses:
Compensation and benefits		8,689	7,671	17,100	15,227
General and administrative expenses		5,860	4,585	11,349	8,625
Servicing fees		9,943	10,890	21,277	20,478
Deal expenses		2,095	1,345	3,183	12,698
Total other expenses		26,587	24,491	52,909	57,028
Income before income taxes		118,144	115,156	357,184	277,979
Income taxes		36	139	68	155
Net income (loss)		118,108	115,017	357,116	277,824
Dividend on preferred stock		9,400	9,400	18,800	14,683
Net income (loss) available to common shareholders		$ 108,708	$ 105,617	$ 338,316	$ 263,141
Net income (loss) per share available to common shareholders:
Basic (usd per share)		$ 0.58	$ 0.56	$ 1.81	$ 1.40
Diluted (usd per share)		$ 0.58	$ 0.56	$ 1.80	$ 1.40
Weighted average number of common shares outstanding:
Basic (shares)		186,994,743	187,779,406	187,272,469	187,770,626
Diluted (shares)		187,422,145	188,142,551	187,738,443	188,169,093
Dividends declared per share of common stock (usd per share)		$ 0.50	$ 0.5	$ 1	$ 1

[1] Includes interest income of consolidated VIEs of $229,746 and $234,437 for the quarters ended June 30, 2018 and 2017, respectively and interest income of consolidated VIEs of $464,772 and $427,426 for the six months ended June 30, 2018 and 2017. See Note 8 to consolidated financial statements for further discussion.

[2] Includes interest expense of consolidated VIEs of $99,507 and $105,723 for the quarters ended June 30, 2018 and 2017, respectively and interest expense of consolidated VIEs of $199,121 and $188,407 for the six months ended June 30, 2018 and 2017. See Note 8 to consolidated financial statements for further discussion.