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Related Party Transactions - Summary of Loan Transactions with Related Parties (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Related Party Transactions [Abstract]    
Beginning balance $ 13,957 $ 14,168
Advances 6,699 12,472
Curtailments 12,919 12,683
Ending balance $ 7,737 $ 13,957