Annual report pursuant to Section 13 and 15(d)

Off-Balance Sheet Commitments - Allowance for Credit Losses Related to Off-Balance Sheet Items (Detail)

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Off-Balance Sheet Commitments - Allowance for Credit Losses Related to Off-Balance Sheet Items (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Loss Contingencies [Line Items]      
Balance at beginning of period $ 2,586 $ 2,792 $ 2,397
Adjusted balance 2,586 2,792 2,062
Provision (recovery) for credit losses 528 (206) 730
Balance at end of period $ 3,114 $ 2,586 2,792
ASU 2016-13      
Loss Contingencies [Line Items]      
Adjustment related to adoption of ASU 2016-13     $ (335)