Repurchase Agreements (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Balance	$ 2,202,648	$ 2,849,916
Weighted Average Rate	1.30%	0.23%
Fair Value of Collateral Pledged	$ 2,373,246	$ 3,011,319
Residential Mortgage Backed Securities [Member] \| Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Balance	$ 1,825,113	$ 2,408,126
Weighted Average Rate	1.22%	0.17%
Fair Value of Collateral Pledged	$ 1,959,295	$ 2,536,094
Commercial Mortgage Backed Securities [Member] \| Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Balance	$ 156,422	$ 176,268
Weighted Average Rate	1.37%	0.14%
Fair Value of Collateral Pledged	$ 166,562	$ 184,847
Interest-Only-Strip [Member] \| Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Balance	$ 157,320	$ 180,912
Weighted Average Rate	1.63%	0.68%
Fair Value of Collateral Pledged	$ 173,256	$ 192,481
Interest-Only-Strip [Member] \| Non-Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Balance	$ 63,793	$ 84,610
Weighted Average Rate	2.48%	0.99%
Fair Value of Collateral Pledged	$ 74,133	$ 97,897

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No definition available.

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- Definition

Interest rate on the amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

+ References

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- Definition

Amount to be repaid to the counterparty to the repurchase agreement when the carrying amount (or market value, if higher than the carrying amount) of securities or other assets sold under the repurchase agreement exceeds 10 percent of total assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(i))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

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- Definition

Carrying amount of financial assets accounted for as secured borrowings recognized in the transferor's statement of financial position at the end of each period presented.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109249958&loc=SL6224234-111729

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