Quarterly report pursuant to Section 13 or 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
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Risks and Uncertainties [Abstract]        
Balance at beginning of period $ 2,475 $ 2,313 $ 3,114 $ 2,586
Provision expense (recovery) for credit losses (13) 936 (652) 663
Balance at end of period $ 2,462 $ 3,249 $ 2,462 $ 3,249