Borrowings - Summary of Financial Data Pertaining to Federal Home Loan Bank Advances (Detail) - USD ($) |
9 Months Ended | 12 Months Ended |
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Sep. 30, 2020 |
Dec. 31, 2019 |
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| Federal Home Loan Banks [Abstract] | ||
| Weighted-average interest rate at end of period | 1.40% | 1.70% |
| Weighted-average interest rate during the period | 1.42% | 1.89% |
| Average balance of FHLB advances | $ 158,818,000 | $ 40,374,000 |
| Maximum amount outstanding at any month-end | $ 440,000,000 | $ 285,000,000 |
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- Definition The calculated average balance outstanding for the year for all Federal Home Loan Bank advances as of the Balance Sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The calculated weighted average interest rate for Federal Home Loan Bank advances outstanding as of the Balance Sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The calculated weighted average interest rate for Federal Home Loan Bank advances for the period ended as of the Balance Sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The maximum balance outstanding at any month end during the period as of the Balance Sheet date. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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