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Schedule of Mortgage-Backed Securities by Weighted Average Life (Details) - USD ($) $ in Thousands		Jun. 30, 2023	Dec. 31, 2022
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)	[1]	$ 920,714	$ 893,301
Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		24,430	20,704
Amortized Cost		$ 21,667	$ 18,703
Weighted Average Coupon Rate, Percent		8.07%	5.26%
Fixed Rate [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 889,028	$ 863,284
Amortized Cost		$ 939,423	$ 938,829
Weighted Average Coupon Rate, Percent		3.93%	3.63%
Fixed Rate [Member] | Less than three years [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 32,861	$ 17,005
Amortized Cost		$ 33,912	$ 17,868
Weighted Average Coupon Rate, Percent		4.43%	3.80%
Fixed Rate [Member] | Greater than three years and less than seven years [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 272,549	$ 204,858
Amortized Cost		$ 286,453	$ 221,291
Weighted Average Coupon Rate, Percent		4.85%	4.10%
Fixed Rate [Member] | Greater than seven years and less than eleven years [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 583,522	$ 640,207
Amortized Cost		$ 618,955	$ 698,391
Weighted Average Coupon Rate, Percent		3.51%	3.48%
Fixed Rate [Member] | Greater than eleven years [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 96	$ 1,214
Amortized Cost		$ 103	$ 1,279
Weighted Average Coupon Rate, Percent		4.00%	4.50%
Interest-Only [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 7,256	$ 9,313
Amortized Cost		$ 6,913	$ 9,212
Weighted Average Coupon Rate, Percent		3.02%	3.89%
Interest-Only [Member] | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 11,417	$ 8,138
Amortized Cost		$ 9,065	$ 6,289
Weighted Average Coupon Rate, Percent		0.22%	0.24%
Interest-Only [Member] | Less than three years [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 476	$ 797
Amortized Cost		$ 585	$ 882
Weighted Average Coupon Rate, Percent		4.09%	4.03%
Interest-Only [Member] | Less than three years [Member] | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 0	$ 0
Amortized Cost		$ 0	$ 0
Weighted Average Coupon Rate, Percent		0.00%	0.00%
Interest-Only [Member] | Greater than three years and less than seven years [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 2,825	$ 3,937
Amortized Cost		$ 2,580	$ 3,827
Weighted Average Coupon Rate, Percent		2.54%	4.13%
Interest-Only [Member] | Greater than three years and less than seven years [Member] | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 0	$ 0
Amortized Cost		$ 0	$ 0
Weighted Average Coupon Rate, Percent		0.00%	0.00%
Interest-Only [Member] | Greater than seven years and less than eleven years [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 3,955	$ 4,579
Amortized Cost		$ 3,748	$ 4,503
Weighted Average Coupon Rate, Percent		3.54%	3.61%
Interest-Only [Member] | Greater than seven years and less than eleven years [Member] | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 11,417	$ 8,138
Amortized Cost		$ 9,065	$ 6,289
Weighted Average Coupon Rate, Percent		0.22%	0.24%
Interest-Only [Member] | Greater than eleven years [Member] | Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 0	$ 0
Amortized Cost		$ 0	$ 0
Weighted Average Coupon Rate, Percent		0.00%	0.00%
Interest-Only [Member] | Greater than eleven years [Member] | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 0	$ 0
Amortized Cost		$ 0	$ 0
Weighted Average Coupon Rate, Percent		0.00%	0.00%
Principal and interest securities | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 13,013	$ 12,566
Amortized Cost		$ 12,602	$ 12,414
Weighted Average Coupon Rate, Percent		8.07%	5.26%
Principal and interest securities | Less than three years [Member] | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 2,017	$ 2,099
Amortized Cost		$ 2,044	$ 2,092
Weighted Average Coupon Rate, Percent		7.22%	5.67%
Principal and interest securities | Greater than three years and less than seven years [Member] | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 524	$ 1,889
Amortized Cost		$ 351	$ 1,763
Weighted Average Coupon Rate, Percent		5.21%	4.67%
Principal and interest securities | Greater than seven years and less than eleven years [Member] | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 5,894	$ 7,911
Amortized Cost		$ 6,240	$ 8,559
Weighted Average Coupon Rate, Percent		6.77%	5.34%
Principal and interest securities | Greater than eleven years [Member] | Non-Agency RMBS [Member]
Mortgage-Backed Securities [Line Items]
Mortgage-backed securities, at fair value(1)		$ 4,578	$ 667
Amortized Cost		$ 3,967	$ 0
Weighted Average Coupon Rate, Percent		11.04%	4.71%
[1] Includes assets pledged as collateral to counterparties. See Note 6 for additional details on the Company's borrowings and related collateral.

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The fair value as of the balance sheet date of firm holdings in mortgages, mortgage backed securities (investment instruments that represent ownership of an undivided interest in a group of mortgages, where principal and interest from the individual mortgages are used to pay investors' principal and interest on the mortgage backed security) and asset-backed securities that are primarily paid from the cash flows of a discrete pool of receivables or other financial assets (such as credit-card receivables), either fixed or revolving, that by their terms convert into cash within a finite time period. Includes both pledged (to counterparties as collateral for financing transactions) and unpledged holdings.

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Cost of the investment.

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