Statements of Operations - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Interest income	$ 144,633	$ 134,700	$ 116,045
Interest expense	(61,708)	(7,090)	(25,056)
Net interest income	82,925	127,610	90,989
Unrealized (losses) gains on mortgage-backed securities and U.S. Treasury Notes	(642,710)	(198,454)	25,761
Gains (losses) on derivative instruments	455,736	26,877	(79,092)
Net portfolio (loss) income	(237,744)	(49,509)	12,672
Management fees	10,447	8,156	5,281
Allocated overhead	2,042	1,632	1,514
Incentive compensation	957	1,132	38
Directors' fees and liability insurance	1,251	1,169	998
Audit, legal and other professional fees	1,143	1,112	1,045
Direct REIT operating expenses	4,091	1,475	1,057
Other administrative	778	575	611
Total expenses	20,709	15,251	10,544
Net (loss) income	$ (258,453)	$ (64,760)	$ 2,128
Basic and diluted net (loss) income per share (in dollars per share)	$ (6.90)	$ (2.67)	$ 0.16
Weighted Average Shares Outstanding (in shares)	37,464,671	24,228,865	13,442,163
Collateralized Mortgage-Backed Securities [Member]
Realized losses on mortgage-backed securities	$ (133,695)	$ (5,542)	$ (24,986)