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Derivative Financial Instruments - Aggregate Fair Value and Notional Amount of Derivative Financial Instruments (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Derivative [Line Items]
Fair Value	$ 28,905	$ 3,975
Notional Amount	3,273,707	1,772,298
TBAs
Derivative [Line Items]
Notional Amount	2,000,000	1,070,000
Interest rate futures
Derivative [Line Items]
Notional Amount	204,000	411,000
Derivative Liabilities
Derivative [Line Items]
Fair Value	(8,781)	(16,855)
Notional Amount	1,098,870	908,532
Derivative Liabilities | TBAs
Derivative [Line Items]
Fair Value	(5,495)	(16,784)
Notional Amount	425,000	845,000
Derivative Liabilities | Interest rate futures
Derivative [Line Items]
Fair Value	(199)	(57)
Notional Amount	67,700	60,000
Derivative Liabilities | Loan purchase and interest rate lock commitments
Derivative [Line Items]
Fair Value	(3,087)	(14)
Notional Amount	606,170	3,532
Derivative Assets
Derivative [Line Items]
Fair Value	37,686	20,830
Notional Amount	2,174,837	863,766
Derivative Assets | Interest rate swaps
Derivative [Line Items]
Fair Value	13,819	14,625
Notional Amount	190,000	285,000
Derivative Assets | TBAs
Derivative [Line Items]
Fair Value	16,613	1,893
Notional Amount	1,560,000	220,000
Derivative Assets | Interest rate futures
Derivative [Line Items]
Fair Value	2,187	3,976
Notional Amount	136,200	350,600
Derivative Assets | Loan purchase and interest rate lock commitments
Derivative [Line Items]
Fair Value	5,067	336
Notional Amount	$ 288,637	$ 8,166

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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