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Repurchase Agreements - Schedule of Unencumbered Securities (Details) $ in Thousands	Sep. 30, 2023 USD ($)
Repurchase agreements
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	$ 172,761
Agency RMBS | Repurchase agreements
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	47,610
Non-Agency RMBS | Residential Loan Securitizations
Assets Sold under Agreements to Repurchase [Line Items]
Collateralized debt obligations, repurchased residential loan securitization	40,200
Non-Agency RMBS | Repurchase agreements
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	119,503
Non-Agency RMBS | Repurchase agreements | Consolidated SLST
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	17,800
CMBS | Repurchase agreements
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	$ 5,648

X

- Definition

Collateralized Debt Obligations, Repurchased Residential Loan Securitization

+ References

No definition available.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(m)(1)(ii)(A))
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1

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- Definition

Amount, after the effects of master netting arrangements, of securities borrowed from entities in exchange for collateral. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483466/210-20-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 210
-SubTopic 20
-Name Accounting Standards Codification
-Section 55
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483444/210-20-55-10

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 50
-Paragraph 1A
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147481420/860-30-50-1A

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