CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Preferred Stock Preferred Stock 7.50% Series B Cumulative Redeemable - Liquidation Preference $25.00 per Share	Common Stock	Additional Paid-in Capital	Accumulated Deficit	Accumulated Other Comprehensive Income
Balance (in shares) at Dec. 31, 2017			8,000,000	397,831,000
Balance at Dec. 31, 2017		$ 3,261,636	$ 80	$ 3,978	$ 3,227,304	$ (578,950)	$ 609,224
Increase (Decrease) in Stockholders' Equity
Net income		83,395				83,395
Issuance of common stock, net of expenses (in shares)				849,000
Issuance of common stock, net of expenses		1,230		$ 6	1,224
Repurchase of shares of common stock (in shares)	[1]			(251,000)
Repurchase of shares of common stock	[1]	(1,957)			(1,957)
Equity based compensation expense		549			549
Accrued dividends attributable to stock-based awards		430			430
Dividends declared on common stock ($0.20 per share)		(79,686)				(79,686)
Dividends declared on preferred stock ($0.46875 per share)		(3,750)				(3,750)
Dividends attributable to dividend equivalents		(217)				(217)
Change in unrealized gains on MBS, net		(46,163)					(46,163)
Derivative hedging instrument fair value changes, net		19,669					19,669
Balance (in shares) at Mar. 31, 2018			8,000,000	398,429,000
Balance at Mar. 31, 2018		3,235,431	$ 80	$ 3,984	3,227,550	(578,913)	582,730
Balance (in shares) at Dec. 31, 2017			8,000,000	397,831,000
Balance at Dec. 31, 2017		3,261,636	$ 80	$ 3,978	3,227,304	(578,950)	609,224
Increase (Decrease) in Stockholders' Equity
Net income		153,790
Dividends declared on preferred stock ($0.46875 per share)		(7,500)
Balance (in shares) at Jun. 30, 2018			8,000,000	398,533,000
Balance at Jun. 30, 2018		3,206,613	$ 80	$ 3,985	3,230,055	(592,218)	564,711
Increase (Decrease) in Stockholders' Equity
Adjustments related to tax withholding for share-based compensation				$ 2,000
Shares paid for tax withholding for share based compensation (in shares)				250,946
Balance (in shares) at Mar. 31, 2018			8,000,000	398,429,000
Balance at Mar. 31, 2018		3,235,431	$ 80	$ 3,984	3,227,550	(578,913)	582,730
Increase (Decrease) in Stockholders' Equity
Net income		70,395				70,395
Issuance of common stock, net of expenses (in shares)				104,000
Issuance of common stock, net of expenses		481		$ 1	480
Repurchase of shares of common stock (in shares)	[1]			0
Repurchase of shares of common stock	[1]	0			0
Equity based compensation expense		2,255			2,255
Accrued dividends attributable to stock-based awards		(230)			(230)
Dividends declared on common stock ($0.20 per share)		(79,706)				(79,706)
Dividends declared on preferred stock ($0.46875 per share)		(3,750)				(3,750)
Dividends attributable to dividend equivalents		(244)				(244)
Change in unrealized gains on MBS, net		(25,934)					(25,934)
Derivative hedging instrument fair value changes, net		7,915					7,915
Balance (in shares) at Jun. 30, 2018			8,000,000	398,533,000
Balance at Jun. 30, 2018		3,206,613	$ 80	$ 3,985	3,230,055	(592,218)	564,711
Balance (in shares) at Dec. 31, 2018			8,000,000	449,787,000
Balance at Dec. 31, 2018		3,416,101	$ 80	$ 4,498	3,623,275	(632,040)	420,288
Increase (Decrease) in Stockholders' Equity
Net income		88,857				88,857
Issuance of common stock, net of expenses (in shares)				1,066,000
Issuance of common stock, net of expenses		551		$ 7	544
Repurchase of shares of common stock (in shares)	[1]			(370,000)
Repurchase of shares of common stock	[1]	(2,610)			(2,610)
Equity based compensation expense		992			992
Accrued dividends attributable to stock-based awards		435			435
Dividends declared on common stock ($0.20 per share)		(90,097)				(90,097)
Dividends declared on preferred stock ($0.46875 per share)		(3,750)				(3,750)
Dividends attributable to dividend equivalents		(256)				(256)
Change in unrealized gains on MBS, net		5,094					5,094
Derivative hedging instrument fair value changes, net		(10,786)					(10,786)
Balance (in shares) at Mar. 31, 2019			8,000,000	450,483,000
Balance at Mar. 31, 2019		3,404,531	$ 80	$ 4,505	3,622,636	(637,286)	414,596
Balance (in shares) at Dec. 31, 2018			8,000,000	449,787,000
Balance at Dec. 31, 2018		3,416,101	$ 80	$ 4,498	3,623,275	(632,040)	420,288
Increase (Decrease) in Stockholders' Equity
Net income		$ 181,897
Repurchase of shares of common stock (in shares)		0
Dividends declared on preferred stock ($0.46875 per share)		$ (7,500)
Balance (in shares) at Jun. 30, 2019			8,000,000	450,622,000
Balance at Jun. 30, 2019		3,403,373	$ 80	$ 4,506	3,625,399	(638,396)	411,784
Increase (Decrease) in Stockholders' Equity
Adjustments related to tax withholding for share-based compensation				$ 2,600
Shares paid for tax withholding for share based compensation (in shares)				370,244
Balance (in shares) at Mar. 31, 2019			8,000,000	450,483,000
Balance at Mar. 31, 2019		3,404,531	$ 80	$ 4,505	3,622,636	(637,286)	414,596
Increase (Decrease) in Stockholders' Equity
Net income		93,040				93,040
Issuance of common stock, net of expenses (in shares)				139,000
Issuance of common stock, net of expenses		586		$ 1	585
Repurchase of shares of common stock (in shares)	[1]			0
Repurchase of shares of common stock	[1]	0			0
Equity based compensation expense		2,438			2,438
Accrued dividends attributable to stock-based awards		(260)			(260)
Dividends declared on common stock ($0.20 per share)		(90,124)				(90,124)
Dividends declared on preferred stock ($0.46875 per share)		(3,750)				(3,750)
Dividends attributable to dividend equivalents		(276)				(276)
Change in unrealized gains on MBS, net		17,637					17,637
Derivative hedging instrument fair value changes, net		(20,449)					(20,449)
Balance (in shares) at Jun. 30, 2019			8,000,000	450,622,000
Balance at Jun. 30, 2019		$ 3,403,373	$ 80	$ 4,506	$ 3,625,399	$ (638,396)	$ 411,784

[1] For the six months ended June 30, 2018, includes approximately $2.0 million (250,946 shares) surrendered for tax purposes related to equity-based compensation awards.
The accompanying notes are an integral part of the consolidated financial statements.