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Fair Value - Additional Information (Detail) | 12 Months Ended
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Dec. 31, 2020 USD ($)
Servicing Assets At Fair Value [Line Items] |
Servicing rights of sold loans | $ 846,500,000
Weighted average net servicing fee income, Basis points | 0.273%
Weighted average prepayment speed assumption used in the fair value | 15.81%
Weighted average discount rate | 10.18%
Paycheck Protection Program [Member] |
Servicing Assets At Fair Value [Line Items] |
Credit risk | $ 0
Minimum [Member] |
Servicing Assets At Fair Value [Line Items] |
Estimated base annual servicing costs | $ 75.00
Base discount rate | 10.00%
Maximum [Member] |
Servicing Assets At Fair Value [Line Items] |
Estimated base annual servicing costs | $ 90.00
Base discount rate | 13.00%
MSR Assets [Member] |
Servicing Assets At Fair Value [Line Items] |
Amortized cost of assets | $ 7,084,000
Fair value of assets | $ 7,300,000

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- Definition Discount rate which is used to value residual cash flows generated by financial assets of a securitization, asset-backed financing arrangement, or similar transfer regardless of when the transfer occurred. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(1) -URI http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719 + Details
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- Definition Estimated rate of prepayment of principal on financial assets regardless of when the transfer occurred. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 20 -Section 50 -Paragraph 4 -Subparagraph (b)(2) -URI http://asc.fasb.org/extlink&oid=121570589&loc=d3e107314-111719 + Details
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- Definition Aggregate amount of servicing assets that are subsequently measured at fair value and servicing assets that are subsequently measured using the amortization method. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 860 -SubTopic 50 -Section 45 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6469459&loc=d3e122501-111745 + Details
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