Repurchase Agreements (Details) $ in Thousands	Sep. 30, 2022 USD ($) counterparty	Dec. 31, 2021 USD ($)
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Weighted Average Rate	2.90%	0.23%
Fair Value of Collateral Pledged	$ 3,148,841	$ 3,011,319
Repurchase agreements	3,009,269	2,849,916
Due from counterparties	352,310	2,771
Due to counterparties	$ 147,925	$ 2,471
Number of counterparties \| counterparty	25
Residential Mortgage Backed Securities [Member] \| Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Weighted Average Rate	2.85%	0.17%
Fair Value of Collateral Pledged	$ 2,811,147	$ 2,536,094
Repurchase agreements	2,700,463	$ 2,408,126
Due from counterparties	$ 245,183
Commercial Mortgage Backed Securities [Member] \| Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Weighted Average Rate	3.21%	0.14%
Fair Value of Collateral Pledged	$ 115,523	$ 184,847
Repurchase agreements	$ 109,855	$ 176,268
Interest-Only-Strip [Member] \| Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Weighted Average Rate	3.30%	0.68%
Fair Value of Collateral Pledged	$ 158,094	$ 192,481
Repurchase agreements	$ 144,321	$ 180,912
Interest-Only-Strip [Member] \| Non-Agency MBS
Assets and Associated Liabilities of Transfers Accounted for as Secured Borrowings [Line Items]
Weighted Average Rate	4.01%	0.99%
Fair Value of Collateral Pledged	$ 64,077	$ 97,897
Repurchase agreements	$ 54,630	$ 84,610

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

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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.

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Amount receivable from broker-dealers and clearing organizations, including, but not limited to, securities failed-to-deliver, certain deposits for securities borrowed, open transactions, good faith and margin deposits, commissions and floor brokerage receivables.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-SubTopic 20
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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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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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