CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY (Unaudited) - USD ($) $ in Thousands	Common Stock Shares Outstanding	Common Stock	Additional Paid-In Capital	Accum. Other Comp. Income Gain Agency MBS	Accum. Other Comp. Income Non-Agency MBS	Accum. Other Comp. Gain (Loss) Derivatives	Accum. (Deficit) Series A Preferred Stock	Accum. (Deficit) Series C Preferred Stock	Accum. (Deficit) Series B Preferred Stock	Accum. (Deficit)	Series A Preferred Stock Shares Outstanding	Series C Preferred Stock Shares Outstanding	Series A Preferred Stock	Series C Preferred Stock	Series B Preferred Stock	Total
Beginning Balance at Dec. 31, 2016		$ 957	$ 966,714	$ 24,869	$ 1,536	$ (17,757)				$ (403,079)			$ 46,537	$ 11,321		$ 631,098
Beginning Balance (in shares) at Dec. 31, 2016	95,718,000										1,919,000	486,000
Issuance of stock		1	320											4,854		5,175
Issuance of stock (in shares)	61,000											197,000
Cancellation of common stock		(2)	2
Cancellation of common stock (in shares)	(197,000)
Other comprehensive income, fair value adjustments and reclassifications				2,403	9,514	614										12,531
Net income										15,401						15,401
Amortization of restricted stock			20													20
Dividend declared							$ (1,035)	$ (253)	$ (394)				(1,035)	(253)	$ (394)
Dividend declared - $0.15 per common share										(14,337)						(14,337)
Ending Balance at Mar. 31, 2017		956	967,056	27,272	11,050	(17,143)				(403,697)			46,537	16,175		648,206
Ending Balance (in shares) at Mar. 31, 2017	95,582,000										1,919,000	683,000
Beginning Balance at Dec. 31, 2016		957	966,714	24,869	1,536	(17,757)				(403,079)			46,537	11,321		631,098
Beginning Balance (in shares) at Dec. 31, 2016	95,718,000										1,919,000	486,000
Other comprehensive income, fair value adjustments and reclassifications																16,992
Net income																25,498
Dividend declared																(3,780)
Ending Balance at Jun. 30, 2017		975	976,482	22,350	19,869	(16,579)				(410,254)			46,537	38,240		677,620
Ending Balance (in shares) at Jun. 30, 2017	97,498,000										1,919,000	1,580,000
Beginning Balance at Mar. 31, 2017		956	967,056	27,272	11,050	(17,143)				(403,697)			46,537	16,175		648,206
Beginning Balance (in shares) at Mar. 31, 2017	95,582,000										1,919,000	683,000
Issuance of stock		1	307									$ 897		22,065		22,373
Issuance of stock (in shares)	53,000
Conversions of Series B Preferred Stock		18	9,099													$ 9,117
Conversions of Series B Preferred Stock (in shares)	1,863,000															1,862,880
Other comprehensive income, fair value adjustments and reclassifications				(4,922)	8,819	564										$ 4,461
Net income										10,097						10,097
Amortization of restricted stock			20													20
Dividend declared							$ (1,035)	$ (751)	$ (244)				(1,035)	(751)	$ (244)	(2,025)
Dividend declared - $0.15 per common share										(14,624)						(14,624)
Ending Balance at Jun. 30, 2017		$ 975	$ 976,482	$ 22,350	$ 19,869	$ (16,579)				$ (410,254)			$ 46,537	$ 38,240		$ 677,620
Ending Balance (in shares) at Jun. 30, 2017	97,498,000										1,919,000	1,580,000