Annual report pursuant to Section 13 and 15(d)

Deposits - Summary of Interest Expense on Deposits (Detail)

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Deposits - Summary of Interest Expense on Deposits (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Banking And Thrift [Abstract]      
Demand: interest-bearing $ 116 $ 106 $ 74
Money market and savings 23,556 16,182 12,515
Time deposits of $100,000 or more 36,867 24,309 10,471
Other time deposits 2,566 2,483 3,029
Total interest expense on deposits $ 63,105 $ 43,080 $ 26,089