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Fair Value Measurements - Quantitative Information for Level 3 Measurements (Details) - Level 3	Mar. 31, 2022	Dec. 31, 2021
Dealer pricing | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held for sale	0.89	0.89
Dealer pricing | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held for sale	1.01	1.03
Dealer pricing | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
Mortgage loans held for sale	0.98	0.99
Loan funding probability | IRLCs | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
IRLCs	0	0
Loan funding probability | IRLCs | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
IRLCs	1	1
Loan funding probability | IRLCs | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
IRLCs	0.77	0.78
Discount rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.090	0.090
Discount rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.120	0.120
Discount rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.095	0.095
Conditional prepayment rate | Minimum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.065	0.068
Conditional prepayment rate | Maximum
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.150	0.369
Conditional prepayment rate | Weighted Average
Fair Value Measurement Inputs and Valuation Techniques [Line Items]
MSRs	0.071	0.087

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- Definition

Servicing Asset And Servicing Liability, Measurement Input

+ References

No definition available.

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- Definition

Value of input used to measure derivative asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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- 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

No definition available.

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- Definition

Value of input used to measure loan, held for sale.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-URI http://asc.fasb.org/extlink&oid=123874694&loc=d3e19207-110258

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