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Repurchase Agreements - Narrative (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2024 USD ($) counterparty	Dec. 31, 2023 USD ($) counterparty	Dec. 31, 2022 USD ($)
Assets Sold under Agreements to Repurchase [Line Items]
Cash and cash equivalents	$ 167,422	$ 187,107	$ 244,718
Unencumbered investment securities	$ 170,167
Number of counterparties with amounts outstanding under repurchase agreements | counterparty	9	7
Repurchase agreements, number of counterparties | counterparty	5
Financings under repurchase agreements, aggregate outstanding balance	$ 481,400
Accrued interest payable	$ 28,400	$ 13,600
Weighted average advance rate	96.00%	93.40%
Average interest rate haircut	4.00%	6.60%
Weighted average months to maturity	26 days	46 days
Weighted average interest rate	4.84%	5.66%
Interest rate caps
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreements, number of counterparties | counterparty	1
Residential loans
Assets Sold under Agreements to Repurchase [Line Items]
Unencumbered investment securities	$ 128,700
Number of counterparties with amounts outstanding under repurchase agreements | counterparty	6
Residential Loans, Real Estate Owned And Single-Family Rental Properties
Assets Sold under Agreements to Repurchase [Line Items]
Accrued interest payable	$ 2,500	$ 3,700
Agency RMBS
Assets Sold under Agreements to Repurchase [Line Items]
Unencumbered investment securities	$ 128,012
Average interest rate haircut	4.20%
Non-Agency RMBS
Assets Sold under Agreements to Repurchase [Line Items]
Unencumbered investment securities	$ 42,155
Average interest rate haircut		27.90%
U.S. Treasury securities
Assets Sold under Agreements to Repurchase [Line Items]
Average interest rate haircut	1.30%
Repurchase agreements
Assets Sold under Agreements to Repurchase [Line Items]
Cash and cash equivalents	$ 163,300
Unencumbered investment securities	$ 170,200
Atlas SP
Assets Sold under Agreements to Repurchase [Line Items]
Repurchase agreement percentage at risk	6.08%

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Number of counterparties the entity has repurchase agreements with.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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Weighted average maturity (weighted by amount of the agreement) of repurchase agreements with the counterparty, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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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.

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