Mortgage-Backed Securities Interest Income Components (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Interest Income Components [Line Items]
Net Amortization	$ (2,290)	$ (7,524)
Interest income	35,006	28,364
Agency RMBS [Member]
Interest Income Components [Line Items]
Coupon Interest	35,721	39,159
Net Amortization	(3,855)	(11,662)
Interest income	31,866	27,497
Non-Agency RMBS [Member]
Interest Income Components [Line Items]
Coupon Interest	1,887	210
Net Amortization	(329)	547
Interest income	1,558	757
Residential Mortgage Backed Securities [Member]
Interest Income Components [Line Items]
Coupon Interest	37,608	39,369
Net Amortization	(4,184)	(11,115)
Interest income	$ 33,424	$ 28,254

[Line Items] for Interest Income Components [Table]

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- Definition

The sum of the periodic adjustments of the differences between securities' face values and purchase prices that are charged against earnings. This is called accretion if the security was purchased at a discount and amortization if it was purchased at premium. As a noncash item, this element is an adjustment to net income when calculating cash provided by or used in operations using the indirect method.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585

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- Definition

Amount of operating interest income, including, but not limited to, amortization and accretion of premiums and discounts on securities.

+ References

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- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.7(b))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

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