Quarterly report pursuant to Section 13 or 15(d)

Borrowings and Subordinated Debentures - Summary of Financial Data Pertaining to Federal Home Loan Bank Advances (Detail)

v3.21.2
Borrowings and Subordinated Debentures - Summary of Financial Data Pertaining to Federal Home Loan Bank Advances (Detail) - USD ($)
9 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2020
Federal Home Loan Banks [Abstract]    
Weighted-average interest rate at end of period 1.05% 1.40%
Weighted-average interest rate during the period 1.20% 1.42%
Average balance of FHLB advances $ 147,897,000 $ 156,601,000
Maximum amount outstanding at any month-end $ 150,000,000 $ 300,000,000