Consolidated Balance Sheets - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Assets [Abstract]
Cash and cash equivalents	$ 119,639	$ 332,035
Cash collateral posted to counterparties	118,225	117,842
Mortgage-backed securities (including pledged of $5,880,747 and $2,810,957, respectively), at fair value	6,038,948	3,112,705
Due from counterparties	1,313	10,348
Derivative assets	54,361	7,102
Accrued interest receivable	28,727	15,260
Other assets, net	8,537	9,942
Total assets	6,369,750	3,605,234
Liabilities:
Repurchase agreements	5,381,104	2,644,405
Due to counterparties	95	4,159
Derivative liabilities	0	22,595
Cash collateral posted by counterparties	46,001	435
Accrued interest payable	53,194	16,450
Accrued dividends payable	10,320	9,103
Other liabilities	8,301	6,759
Total liabilities	5,499,015	2,703,906
Preferred Stock, Liquidation Preference, Value	111,500	111,500
Stockholders' Equity Attributable to Parent [Abstract]
Preferred stock, par value $0.01 per share; 50,000,000 shares authorized; 4,460,000 and 4,460,000 shares issued and outstanding, respectively ($111,500 and $111,500 aggregate liquidation preference, respectively)	107,843	107,843
Common stock, par value $0.01 per share, 180,000,000 shares authorized; 57,038,247 and 53,637,095 shares issued and outstanding, respectively	570	536
Additional paid-in capital	1,404,431	1,357,514
Accumulated other comprehensive loss	(158,502)	(181,346)
Accumulated deficit	(483,607)	(383,219)
Total shareholders’ equity	870,735	901,328
Total liabilities and shareholders’ equity	$ 6,369,750	$ 3,605,234