Fair Value of Assets and Liabilities - Summary Of The Fair Value Of Assets And Liabilities Measured At Fair Value On A Nonrecurring Basis (Detail) - Fair Value, Nonrecurring - USD ($) $ in Thousands	Sep. 30, 2022	Dec. 31, 2021
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Individually assessed collateral-dependent loans whose fair value is based upon appraisals	$ 13,194	$ 12,068
Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Individually assessed collateral-dependent loans whose fair value is based upon appraisals	0	0
Significant Other Observable Inputs (Level 2)
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Individually assessed collateral-dependent loans whose fair value is based upon appraisals	0	0
Significant Unobservable Inputs (Level 3)
Fair Value Assets And Liabilities Measured On Recurring Basis [Line Items]
Individually assessed collateral-dependent loans whose fair value is based upon appraisals	$ 13,194	$ 12,068