Consolidated Statements of Comprehensive Income - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Interest income	$ 25,922	$ 24,856	$ 51,112	$ 47,275
Interest expense	14,175	8,714	25,770	16,233
Net interest income	11,747	16,142	25,342	31,042
Gain (loss) on derivative instruments, net	20,667	(15,802)	59,021	(15,627)
Loss on sale of investments, net	(12,444)	(3,709)	(16,219)	(5,417)
Fair value adjustments, net	27	30	56	40
Other Operating Income (Expense), Net	(339)	4	(592)	(42)
General and administrative expenses:
Compensation and benefits	(1,751)	(2,041)	(3,713)	(4,286)
Other general and administrative	(2,255)	(2,056)	(3,936)	(4,091)
Net income (loss)	15,652	(7,432)	59,959	1,619
Preferred stock dividends	(2,942)	(2,641)	(5,882)	(5,077)
Net income (loss) to common shareholders	12,710	(10,073)	54,077	(3,458)
Other comprehensive income:
Unrealized (loss) gain on available-for-sale investments, net	(22,156)	8,739	(71,345)	27,107
Reclassification adjustment for loss on sale of investments, net	12,444	3,709	16,219	5,417
Reclassification adjustment for de-designated cash flow hedges	(48)	(73)	(96)	(172)
Total other comprehensive (loss) income	(9,760)	12,375	(55,222)	32,352
Comprehensive income (loss) to common shareholders	$ 2,950	$ 2,302	$ (1,145)	$ 28,894
Net income (loss) per common share-basic and diluted	$ 0.23	$ (0.20)	$ 0.96	$ (0.07)
Weighted average common shares-basic and diluted	56,295	49,218	56,084	49,197