Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
ASSETS
Mortgage-backed securities (including pledged of $3,737,729 and $3,265,979, respectively)	$ 3,737,729	$ 3,516,239
Mortgage loans held for investment, net	27,439	39,700
Investment in limited partnership	10,731	4,000
Investment in FHLB stock	11,475	0
Cash and cash equivalents	12,636	43,944
Restricted cash	78,179	42,263
Derivative assets	10,057	5,727
Principal receivable on investments	11,128	7,420
Accrued interest receivable	20,916	21,157
Other assets, net	7,911	7,861
Total assets	3,928,201	3,688,311
Liabilities:
Repurchase agreements	3,055,069	3,013,110
FHLB advances	255,000	0
Non-recourse collateralized financing	8,581	10,786
Derivative liabilities	63,708	35,898
Accrued interest payable	1,538	1,947
Accrued dividends payable	14,002	15,622
Other liabilities	2,543	3,646
Total liabilities	3,400,441	3,081,009
Shareholders’ equity:
Common stock, par value $.01 per share, 200,000,000 shares authorized; 50,568,790 and 54,739,111 shares issued and outstanding, respectively	506	547
Additional paid-in capital	734,689	763,935
Accumulated other comprehensive income	32,109	21,316
Accumulated deficit	(349,202)	(288,154)
Total shareholders' equity	527,760	607,302
Total liabilities and shareholders’ equity	3,928,201	3,688,311
Series A Preferred Stock [Member]
Shareholders’ equity:
Preferred Stock, par value $.01 per share, 8.5% Series A Cumulative Redeemable; 8,000,000 shares authorized; 2,300,000 shares issued and outstanding ($57,500 aggregate liquidation preference)	55,407	55,407
Preferred Stock, par value $.01 per share, 7.625% Series B Cumulative Redeemable; 7,000,000 shares authorized 2,250,000 shares issued and outstanding ($56,250 aggregate liquidation preference)	55,407	55,407
Series B Preferred Stock [Member]
Shareholders’ equity:
Preferred Stock, par value $.01 per share, 8.5% Series A Cumulative Redeemable; 8,000,000 shares authorized; 2,300,000 shares issued and outstanding ($57,500 aggregate liquidation preference)	54,251	54,251
Preferred Stock, par value $.01 per share, 7.625% Series B Cumulative Redeemable; 7,000,000 shares authorized 2,250,000 shares issued and outstanding ($56,250 aggregate liquidation preference)	$ 54,251	$ 54,251