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Interest-Bearing Deposits - Components of Interest-Bearing Deposits (Detail) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Deposits [Abstract]    
Interest-bearing demand deposits $ 357,769 $ 291,476
Savings deposits 4,572,183 4,647,197
Time deposits 405,009 385,043
Total interest-bearing deposits $ 5,334,961 $ 5,323,716