Repurchase Agreements (Details) $ in Thousands	Sep. 30, 2025 USD ($) counterparty	Dec. 31, 2024 USD ($)
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 11,753,522	$ 6,563,120
Weighted Average Rate	4.44%	4.80%
Fair Value of Collateral Pledged	$ 12,382,611	$ 6,893,629
Number of counterparties \| counterparty	28
Accrued interest payable	$ 110,517	44,672
Residential Mortgage Backed Securities [Member] \| Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 11,123,089	$ 6,368,457
Weighted Average Rate	4.43%	4.79%
Fair Value of Collateral Pledged	$ 11,715,609	$ 6,689,336
Commercial Mortgage Backed Securities [Member] \| Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 545,954	$ 90,717
Weighted Average Rate	4.44%	4.78%
Fair Value of Collateral Pledged	$ 576,591	$ 95,071
Interest-Only-Strip [Member] \| Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 81,018	$ 96,146
Weighted Average Rate	4.83%	5.18%
Fair Value of Collateral Pledged	$ 86,958	$ 101,165
Interest-Only-Strip [Member] \| Non-Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Repurchase agreements	$ 3,461	$ 7,800
Weighted Average Rate	5.05%	5.52%
Fair Value of Collateral Pledged	$ 3,453	$ 8,057

Number of lending counterparties with whom the Company has amounts outstanding as of reporting period.

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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

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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.

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