Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Quantitative Information about Level 3 Fair Value Assumptions for Assets Measured at Fair Value on Non-Recurring Basis (Detail)

v3.22.1
Fair Value Measurements - Quantitative Information about Level 3 Fair Value Assumptions for Assets Measured at Fair Value on Non-Recurring Basis (Detail) - Significant Unobservable Inputs - Non-recurring Basis
$ in Thousands
Mar. 31, 2022
USD ($)
Dec. 31, 2021
USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 3,141 $ 3,398
Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value 3,141 3,398
Retail | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 1,708 $ 1,917
Alternative Investment, Valuation Technique [Extensible List] us-gaap:MarketApproachValuationTechniqueMember us-gaap:MarketApproachValuationTechniqueMember
Retail | Minimum | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (0.025) (0.028)
Retail | Maximum [Member] | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range 0.027 0.023
Retail | Weighted Average | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range 0.009 (0.006)
Other | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 482 $ 499
Alternative Investment, Valuation Technique [Extensible List] us-gaap:MarketApproachValuationTechniqueMember us-gaap:MarketApproachValuationTechniqueMember
Other | Minimum | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (0.020) (0.020)
Other | Maximum [Member] | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range 0.000 0.020
Other | Weighted Average | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range 0.000 0.000
Residential/Consumer Loans | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 951 $ 982
Alternative Investment, Valuation Technique [Extensible List] us-gaap:MarketApproachValuationTechniqueMember us-gaap:MarketApproachValuationTechniqueMember
Residential/Consumer Loans | Minimum | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (0.004) (0.019)
Residential/Consumer Loans | Maximum [Member] | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range 0.010 0.008
Residential/Consumer Loans | Weighted Average | Real Estate    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range 0.006 0.003
Repossessed Personal Property    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 25 $ 8
Alternative Investment, Valuation Technique [Extensible List] us-gaap:MarketApproachValuationTechniqueMember us-gaap:MarketApproachValuationTechniqueMember
Other Real Estate Owned    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Fair Value $ 675 $ 675
Alternative Investment, Valuation Technique [Extensible List] us-gaap:MarketApproachValuationTechniqueMember us-gaap:MarketApproachValuationTechniqueMember
Other Real Estate Owned | Minimum    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (0.010) (0.020)
Other Real Estate Owned | Maximum [Member]    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range 0.010 (0.005)
Other Real Estate Owned | Weighted Average    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Range (0.003) (0.012)