Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail)

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Fair Value Measurements - Assets and Liabilities Measured at Fair Value on Non-Recurring Basis (Detail) - USD ($)
$ in Thousands
Sep. 30, 2024
Jun. 30, 2024
Dec. 31, 2023
Sep. 30, 2023
Jun. 30, 2023
Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Servicing assets $ 6,683 $ 6,836 $ 7,070 $ 7,156 $ 7,352 $ 7,176
Non-recurring Basis            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Collateral dependent loans 5,016 [1]   7,352 [2]      
Other real estate owned 772   117      
Repossessed personal property 1,216   1,305      
Non-recurring Basis | Quoted Prices in Active Markets for Identical Assets            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Collateral dependent loans 0 [1]   0 [2]      
Other real estate owned 0   0      
Repossessed personal property 0   0      
Non-recurring Basis | Significant Observable Inputs with No Active Market with Identical Characteristics            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Collateral dependent loans 0 [1]   0 [2]      
Other real estate owned 0   0      
Repossessed personal property 0   0      
Non-recurring Basis | Significant Unobservable Inputs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Collateral dependent loans 5,016 [1]   7,352 [2]      
Other real estate owned 772   117      
Repossessed personal property $ 1,216   $ 1,305      
[1] Consisted of real estate loans of $5.0 million.
[2] Consisted of real estate loans of $2.2 million and commercial and industrial loans of $5.2 million.