CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($) $ in Thousands		Total	Series C Preferred Stock	Preferred Stock Series C Preferred Stock	Preferred Stock Series B Preferred Stock	Common Stock	Additional Paid-in Capital	Additional Paid-in Capital Series C Preferred Stock	Accumulated Deficit	Accumulated Other Comprehensive Income	Revision of Prior Period, Accounting Standards Update, Adjustment	Revision of Prior Period, Accounting Standards Update, Adjustment Accumulated Deficit
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/(loss)		88,857							88,857
Issuance of stock, net of expenses (in shares)						1,066,000
Issuance of 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 and amortization, 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/(loss)		181,897
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/(loss)		93,040							93,040
Issuance of stock, net of expenses (in shares)						139,000
Issuance of stock, net of expenses		586				$ 1	585
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 and amortization, 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
Balance (in shares) at Dec. 31, 2019				0	8,000,000	452,369,000
Balance at Dec. 31, 2019		3,383,952		$ 0	$ 80	$ 4,524	3,640,341		(631,040)	370,047	$ (8,326)	$ (8,326)
Increase (Decrease) in Stockholders' Equity
Net income/(loss)		(908,995)							(908,995)
Issuance of stock, net of expenses (in shares)				11,000,000		1,106,000
Issuance of stock, net of expenses		687	$ 266,029	$ 110		$ 7	680	$ 265,919
Repurchase of shares of common stock (in shares)	[2]					(337,000)
Repurchase of shares of common stock	[2]	(2,652)					(2,652)
Equity based compensation expense		1,266					1,266
Accrued dividends attributable to stock-based awards		1,059					1,059
Change in unrealized gains on MBS, net		(243,812)								(243,812)
Derivative hedging instrument fair value changes and amortization, net		(48,533)								(48,533)
Balance (in shares) at Mar. 31, 2020				11,000,000	8,000,000	453,138,000
Balance at Mar. 31, 2020		2,440,675		$ 110	$ 80	$ 4,531	3,906,613		(1,548,361)	77,702
Balance (in shares) at Dec. 31, 2019				0	8,000,000	452,369,000
Balance at Dec. 31, 2019		3,383,952		$ 0	$ 80	$ 4,524	3,640,341		(631,040)	370,047	$ (8,326)	$ (8,326)
Increase (Decrease) in Stockholders' Equity
Net income/(loss)		(812,417)
Dividends declared on preferred stock ($0.46875 per share)		(13,359)
Balance (in shares) at Jun. 30, 2020				11,000,000	8,000,000	453,244,000
Balance at Jun. 30, 2020		2,521,051		$ 110	$ 80	$ 4,532	3,922,399		(1,451,783)	45,713
Increase (Decrease) in Stockholders' Equity
Adjustments related to tax withholding for share-based compensation						$ 2,700
Shares paid for tax withholding for share based compensation (in shares)						337,026
Balance (in shares) at Mar. 31, 2020				11,000,000	8,000,000	453,138,000
Balance at Mar. 31, 2020		2,440,675		$ 110	$ 80	$ 4,531	3,906,613		(1,548,361)	77,702
Increase (Decrease) in Stockholders' Equity
Net income/(loss)		96,578							96,578
Issuance of stock, net of expenses (in shares)						106,000
Issuance of stock, net of expenses		37				$ 1	36
Equity based compensation expense		1,709					1,709
Dividends declared on preferred stock ($0.46875 per share)		(8,144)
Change in unrealized gains on MBS, net		(96,021)								(96,021)
Derivative hedging instrument fair value changes and amortization, net		64,032								64,032
Warrants Issued		14,041
Balance (in shares) at Jun. 30, 2020				11,000,000	8,000,000	453,244,000
Balance at Jun. 30, 2020		$ 2,521,051		$ 110	$ 80	$ 4,532	$ 3,922,399		$ (1,451,783)	$ 45,713

[1] For the six months ended June 30, 2019, includes approximately $2.6 million (370,244 shares) surrendered for tax purposes related to equity-based compensation awards.

[2] For the six months ended June 30, 2020 includes approximately $2.7 million (337,026 shares) surrendered for tax purposes related to equity-based compensation awards.