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, 2023
Jun. 30, 2023
Dec. 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Servicing assets $ 7,156 $ 7,352 $ 7,176 $ 7,424 $ 7,354 $ 7,080
Non-recurring Basis            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Collateral dependent loans 6,842 [1]   2,694 [2]      
Other real estate owned 117   117      
Repossessed personal property 1,320   467      
Servicing assets     7,176      
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      
Servicing assets     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      
Servicing assets     0      
Non-recurring Basis | Significant Unobservable Inputs            
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]            
Collateral dependent loans 6,842 [1]   2,694 [2]      
Other real estate owned 117   117      
Repossessed personal property $ 1,320   467      
Servicing assets     $ 7,176      
[1] Consisted of real estate loans of $2.0 million and commercial and industrial loans of $4.8 million, which were secured by real estate and business assets.
[2] Consisted of real estate loans of $2.7 million.