CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME/(LOSS) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net income	$ 93,040	$ 70,395	$ 181,897	$ 153,790
Other Comprehensive Income/(Loss):
Reclassification adjustment for MBS sales included in net income	(6,371)	(5,178)	(21,576)	(15,458)
Derivative hedging instrument fair value changes, net	(19,706)	7,915	(30,151)	27,584
Amortization of de-designated hedging instruments, net	(743)	0	(1,084)	0
Other Comprehensive Income/(Loss)	(2,812)	(18,019)	(8,504)	(44,513)
Comprehensive income before preferred stock dividends	90,228	52,376	173,393	109,277
Dividends declared on preferred stock	(3,750)	(3,750)	(7,500)	(7,500)
Comprehensive Income Available to Common Stock and Participating Securities	86,478	48,626	165,893	101,777
Agency MBS
Other Comprehensive Income/(Loss):
Unrealized (loss)/gain, net	13,555	(9,641)	21,880	(18,331)
Non-Agency MBS, CRT Securities and MSR Term Notes [Member]
Other Comprehensive Income/(Loss):
Unrealized (loss)/gain, net	$ 10,453	$ (11,115)	$ 22,427	$ (38,308)