Annual report pursuant to Section 13 and 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
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Servicing assets $ 7,070 $ 7,176 $ 7,080
Non-recurring Basis      
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]      
Collateral dependent loans 7,352 [1] 2,694 [2]  
Other real estate owned 117 117  
Repossessed personal property 1,305 467  
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 7,352 [1] 2,694 [2]  
Other real estate owned 117 117  
Repossessed personal property $ 1,305 467  
Servicing assets   $ 7,176  
[1] Consisted of real estate loans of $2.2 million and commercial and industrial loans of $5.2 million.
[2] Consisted of real estate loans of $2.7 million.