Condensed Statements of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Interest income	$ 53,064	$ 39,911	$ 101,935	$ 77,923
Interest expense	(53,761)	(48,671)	(105,122)	(90,888)
Net interest expense	(697)	(8,760)	(3,187)	(12,965)
Unrealized losses on mortgage-backed securities and U.S. Treasury securities	(25,970)	(69,539)	(87,865)	(15,644)
Gains on derivative and other hedging instruments	26,068	93,367	113,967	52,211
Net portfolio income (loss)	(599)	15,068	22,915	23,602
Management fees	2,257	2,704	4,418	5,346
Allocated overhead	732	639	1,330	1,215
Incentive compensation	290	318	201	788
Directors' fees and liability insurance	343	318	672	641
Audit, legal and other professional fees	320	448	796	899
Direct REIT operating expenses	178	173	348	338
Other administrative	260	219	353	596
Total expenses	4,380	4,819	8,118	9,823
Net income (loss)	(4,979)	10,249	14,797	13,779
Unrealized (losses) gains on U.S. Treasury securities measured at fair value through other comprehensive net income (loss)	37	0	(10)	0
Comprehensive net income (loss)	$ (4,942)	$ 10,249	$ 14,787	$ 13,779
Basic and diluted net income (loss) per share (in dollars per share)	$ (0.09)	$ 0.25	$ 0.27	$ 0.35
Weighted Average Shares Outstanding (in shares)	57,763,857	40,210,844	54,798,596	39,356,054