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v3.21.1

Loans - Additional Information (Details) | 3 Months Ended |
--- | --- | ---
Mar. 31, 2021 USD ($) payment | Mar. 31, 2020 USD ($) loan | Dec. 31, 2020 USD ($)
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Paycheck protection program | $ 252,300,000 |  | $ 208,900,000
Deferred loan costs | $ (5,000,000.0) |  | (1,700,000)
Period of loan sold by mortgage company | 30 days |  |
Minimum period seldom held | 90 days |  |
Mortgage warehousing maximum pay off period | 30 days |  |
Nonaccrual interest income | $ 0 | $ 0 |
Non–accrual | 20,700,000 |  | 22,142,000
Non-performing TDRs | 2,300,000 |  | 2,600,000
Non–performing TDRs | $ 2,271,000 |  | 2,610,000
Restructured loan returned to accruing status number of Consecutive Payments of loan | payment | 6 |  |
Restructured loan reported in TDRs | $ 4,099,000 |  | 4,403,000
Specific reserves allocated to troubled debt restructuring | 0 |  |
Maximum |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans with an aggregate credit exposure | $ 3,500,000 |  |
Loans classified as TDR after a period | 120 days |  |
Maximum | Satisfactory Pass |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Minimum number of years of Satisfactory Repayment required for Satisfactory Pass Rating | 2 years |  |
Minimum |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Loans with an aggregate credit exposure | $ 1,000,000 |  |
Loans classified as TDR after a period | 90 days |  |
Minimum | Good Pass |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Number of consecutive years of profit for Good Pass Rating | 3 years |  |
Number of consecutive years of profit Unaudited Financial Information for Good Pass Rating | 5 years |  |
Number of years of Satisfactory Relationship with bank for Good Pass Rating | 5 years |  |
CARES Act |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Restructured loan reported in TDRs | $ 91,600,000 |  | $ 126,700,000
Performing |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Restructured loan reported in TDRs | 1,800,000 |  |
Number TDRs returned to accrual status | loan |  | 0 |
Loans Purchased With Evidence of Credit Deterioration |  |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |  |
Non–accrual | 2,400,000 |  |
Non-performing TDRs | $ 907,000 |  |

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