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Fair Value Measurement - Summary of Unobservable Inputs Used in the Fair Value Measurements on Recurring Basis (Details) - Fair Value, Measurements, Recurring - Level 3 | 9 Months Ended
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Sep. 30, 2021
Single Issuer Trust Preferred |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Impact to Valuation from an Increased or Higher Input Value | Decrease
Debt Instrument, Valuation Technique [Extensible List] | us-gaap:ValuationTechniqueDiscountedCashFlowMember
Single Issuer Trust Preferred | Minimum |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Unobservable Inputs | 0.031
Single Issuer Trust Preferred | Maximum |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Unobservable Inputs | 0.064
Single Issuer Trust Preferred | Weighted Average |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Unobservable Inputs | 0.045
Servicing Assets |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Servicing Asset, Valuation Technique [Extensible List] | us-gaap:ValuationTechniqueDiscountedCashFlowMember
Servicing Assets | Prepayment Speeds |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Impact to Valuation from an Increased or Higher Input Value | Decrease
Servicing Assets | Prepayment Speeds | Minimum |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Unobservable Inputs | 0.005
Servicing Assets | Prepayment Speeds | Maximum |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Unobservable Inputs | 0.318
Servicing Assets | Prepayment Speeds | Weighted Average |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Unobservable Inputs | 0.143
Servicing Assets | Discount Rate |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Impact to Valuation from an Increased or Higher Input Value | Decrease
Servicing Assets | Discount Rate | Minimum |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Unobservable Inputs | 0.030
Servicing Assets | Discount Rate | Maximum |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Unobservable Inputs | 0.500
Servicing Assets | Discount Rate | Weighted Average |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Unobservable Inputs | 0.081
Servicing Assets | Expected Weighted Average Loan life |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Impact to Valuation from an Increased or Higher Input Value | Increase
Servicing Assets | Expected Weighted Average Loan life | Minimum |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Expected weighted average loan life | 2 months 12 days
Servicing Assets | Expected Weighted Average Loan life | Maximum |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Expected weighted average loan life | 8 years 6 months
Servicing Assets | Expected Weighted Average Loan life | Weighted Average |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |
Expected weighted average loan life | 3 years 10 months 24 days

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- Definition Value of input used to measure debt instrument, including, but not limited to, convertible and non-convertible debt. + 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=117815213&loc=d3e19207-110258 + Details
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