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Financing Agreements - Pledged Collateral (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	$ 8,057,175	$ 8,019,405
Accrued interest on assets	30,900	25,700
Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	1,331,386	1,426,051
Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	2,654,442	3,556,273
Securitized
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	4,071,347	3,037,081
Residential whole loans, at carrying value
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	1,814,780	2,629,919
Residential whole loans, at carrying value | Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	215,993	693,982
Residential whole loans, at carrying value | Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	284,683	459,349
Residential whole loans, at carrying value | Securitized
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	1,314,104	1,476,588
Residential whole loans, at fair value
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	5,980,471	5,042,356
Residential whole loans, at fair value | Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	1,095,556	706,377
Residential whole loans, at fair value | Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	2,164,158	2,810,865
Residential whole loans, at fair value | Securitized
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	2,720,757	1,525,114
Securities, at fair value
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	177,111	256,685
Securities, at fair value | Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	0	0
Securities, at fair value | Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	177,111	256,685
Securities, at fair value | Securitized
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	0	0
Other assets: REO
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	84,813	90,445
Other assets: REO | Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	19,837	25,692
Other assets: REO | Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	28,490	29,374
Other assets: REO | Securitized
Debt Instrument [Line Items]
Fair value of securities pledged against the repurchase agreements	$ 36,486	$ 35,379

X

- Definition

Sum of the fair values as of the date of the latest financial statement presented of securities pledged as collateral and the amount of interest receivable on the securities pledged as collateral.

+ References

No definition available.

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- Definition

Fair value of securities pledged as collateral against securities sold under agreement to repurchase.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 12
-URI https://asc.fasb.org/extlink&oid=99393222&loc=SL20226013-175313

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