Quarterly report pursuant to Section 13 or 15(d)

Deposits - Additional Information (Detail)

v3.21.2
Deposits - Additional Information (Detail) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Time deposits of $250,000 or more $ 1,029,611,000 $ 1,283,699,000
Accrued interest payable on deposits 1,200,000 4,600,000
Total deposits reclassified to loans due to overdrafts 259,000 241,000
Time Deposits of $250,000 or More    
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items]    
Time deposits of $250,000 or more 226,222,000 311,838,000
Time deposits at or exceeding the FDIC insurance limit of $250,000 $ 188,200,000 $ 265,600,000