Financial Derivatives (TBAs) (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Derivative [Line Items]
Financial derivatives–assets, at fair value-	$ 104,033	$ 132,518
Derivative Liability	24,245	54,198
Derivative Assets (Liabilities), at Fair Value, Net	79,788	78,320
TBA securities
Derivative [Line Items]
Notional Amount	314,466	528,441
Derivative, Cost Basis	(288,116)	(494,953)
Market Value Underlying	(292,215)	(488,975)
Derivative Assets (Liabilities), at Fair Value, Net	(4,099)	5,978
TBA securities | Long
Derivative [Line Items]
Notional Amount	110,335	163,127
Derivative, Cost Basis	104,597	157,096
Market Value Underlying	106,064	155,089
Derivative Assets (Liabilities), at Fair Value, Net	1,467	(2,007)
TBA securities | Short
Derivative [Line Items]
Notional Amount	424,801	691,568
Derivative, Cost Basis	(392,713)	(652,049)
Market Value Underlying	(398,279)	(644,064)
Derivative Assets (Liabilities), at Fair Value, Net	(5,566)	7,985
Financial Derivatives - Assets | TBA securities | Long
Derivative [Line Items]
Notional Amount	86,380	0
Derivative, Cost Basis	80,854	0
Market Value Underlying	82,336	0
Financial derivatives–assets, at fair value-	1,482	0
Financial Derivatives - Assets | TBA securities | Short
Derivative [Line Items]
Notional Amount	77,947	691,568
Derivative, Cost Basis	(72,266)	(652,049)
Market Value Underlying	(72,224)	(644,064)
Financial derivatives–assets, at fair value-	42	7,985
Financial Derivatives - Liabilities | TBA securities | Long
Derivative [Line Items]
Notional Amount	23,955	163,127
Derivative, Cost Basis	23,743	157,096
Market Value Underlying	23,728	155,089
Derivative Liability	(15)	(2,007)
Financial Derivatives - Liabilities | TBA securities | Short
Derivative [Line Items]
Notional Amount	346,854	0
Derivative, Cost Basis	(320,447)	0
Market Value Underlying	(326,055)	0
Derivative Liability	$ (5,608)	$ 0