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Derivative Financial Instruments - Aggregate Fair Value and Notional Amount of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
Derivative [Line Items]
Fair Value	$ (2,694)	$ (19,616)
Notional Amount	2,235,635	2,628,677
TBAs
Derivative [Line Items]
Notional Amount		1,790,000
Interest rate futures
Derivative [Line Items]
Notional Amount	1,230,000	142,000
Derivative Liabilities
Derivative [Line Items]
Fair Value	(5,849)	(33,828)
Notional Amount	1,169,175	1,977,483
Derivative Liabilities | TBAs
Derivative [Line Items]
Fair Value	(5)	(27,020)
Notional Amount	7,000	1,405,000
Derivative Liabilities | Interest rate futures
Derivative [Line Items]
Fair Value	(2,422)	(3,394)
Notional Amount	445,000	141,500
Derivative Liabilities | Loan purchase commitments
Derivative [Line Items]
Fair Value	(3,422)	(3,414)
Notional Amount	717,175	430,983
Derivative Assets
Derivative [Line Items]
Fair Value	3,155	14,212
Notional Amount	1,066,460	651,194
Derivative Assets | Interest rate swaps
Derivative [Line Items]
Fair Value	0	1,742
Notional Amount	0	50,000
Derivative Assets | TBAs
Derivative [Line Items]
Fair Value	0	952
Notional Amount	0	385,000
Derivative Assets | Interest rate futures
Derivative [Line Items]
Fair Value	1,840	0
Notional Amount	782,000	0
Derivative Assets | Loan purchase commitments
Derivative [Line Items]
Fair Value	1,315	11,518
Notional Amount	$ 284,460	$ 216,194

X

- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 825
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 10
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482907/825-10-50-10

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 815
-SubTopic 40
-Name Accounting Standards Codification
-Section 50
-Paragraph 5
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480237/815-40-50-5

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X

- Definition

Nominal or face amount used to calculate payment on derivative.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1B
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1B

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 815
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1A
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480434/815-10-50-1A

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