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Financing Agreements - Pledged Collateral (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	$ 8,550,535	$ 8,019,405
Accrued interest on assets	31,200	25,700
Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	1,446,361	1,426,051
Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	3,825,623	3,556,273
Securitized
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	3,278,551	3,037,081
Residential whole loans, at carrying value
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	2,304,684	2,629,919
Residential whole loans, at carrying value | Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	580,181	693,982
Residential whole loans, at carrying value | Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	380,393	459,349
Residential whole loans, at carrying value | Securitized
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	1,344,110	1,476,588
Residential whole loans, at fair value
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	5,901,287	5,042,356
Residential whole loans, at fair value | Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	838,789	706,377
Residential whole loans, at fair value | Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	3,164,378	2,810,865
Residential whole loans, at fair value | Securitized
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	1,898,120	1,525,114
Securities, at fair value
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	250,171	256,685
Securities, at fair value | Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	0	0
Securities, at fair value | Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	250,171	256,685
Securities, at fair value | Securitized
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	0	0
Other assets: REO
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	94,393	90,445
Other assets: REO | Non-Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	27,391	25,692
Other assets: REO | Mark-to-Market
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	30,681	29,374
Other assets: REO | Securitized
Debt Instrument [Line Items]
Fair value of securities pledged as collateral under financing agreements	$ 36,321	$ 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.

+ Details

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- Definition

The fair value, as of the date of each statement of financial position presented, of securities which are owned but transferred to serve as collateral for the payment of repurchase agreements, and that are reclassified and separately reported in the statement of financial position because the transferee has the right by contract or custom to sell or re-pledge them.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 860
-SubTopic 30
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66007379&loc=d3e113888-111728

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