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Repurchase Agreements - Schedule of Unencumbered Securities (Details) $ in Thousands	Jun. 30, 2025 USD ($)
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	$ 272,533
Agency RMBS
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	231,746
Non-Agency RMBS
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	39,002
Non-Agency RMBS | Financing VIEs
Assets Sold under Agreements to Repurchase [Line Items]
Collateralized debt obligations, repurchased residential loan securitization	5,100
Non-Agency RMBS | Consolidated SLST
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	12,600
U.S. Treasury securities
Assets Sold under Agreements to Repurchase [Line Items]
Securities borrowed	$ 1,785

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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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