Annual report pursuant to Section 13 and 15(d)

Deposits - Additional Information (Detail)

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Deposits - Additional Information (Detail) - USD ($)
Dec. 31, 2021
Dec. 31, 2020
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Time Deposits $ 987,188,000  
Accrued interest payable on deposits 1,200,000 $ 4,600,000
Total deposits reclassified to loans due to overdrafts 277,000 241,000,000,000
Time Deposits of $250,000 or More    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Time Deposits $ 208,527,000 $ 311,800,000