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Deposits - Summary of Composition of Deposit Portfolio (Detail) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Cash and Cash Equivalents [Line Items]    
Demand noninterest-bearing $ 771,205 $ 673,100
Demand interest-bearing 908,933 859,106
Money market and savings 717,480 623,603
Certificates of deposit 154,203 200,634
Total deposits 1,680,138 1,532,206
Demand Deposits [Member]    
Cash and Cash Equivalents [Line Items]    
Demand noninterest-bearing 771,205 673,100
Demand interest-bearing $ 37,250 $ 34,869