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Deposits - Schedule of Deposits Classifications (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Banking and Thrift [Abstract]    
Demand deposit accounts $ 437,828 $ 438,146
Savings 201,887 201,393
Money market accounts 273,741 295,705
NOW accounts 512,054 486,979
Certificates of deposit 395,465 350,994
Total deposits $ 1,820,975 $ 1,773,217