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Loans and Allowance for Credit Losses - Narrative (Details) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2022 USD ($) | Jun. 30, 2021 USD ($) | Jun. 30, 2022 USD ($) contract | Jun. 30, 2021 USD ($) contract | Dec. 31, 2021 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Net deferred origination fees | $ 8,300,000 |  | $ 8,300,000 |  | $ 11,500,000
Accrued interest on loans | 5,300,000 |  | 5,300,000 |  | 5,500,000
PPP loans | 1,394,172,000 |  | 1,394,172,000 |  | 1,402,147,000
Nonaccrual loans | 8,001,000 |  | 8,001,000 |  | 11,650,000
Interest on nonaccrual loans reversed through interest income | 0 | $ 0 | 2,000 | $ 0 |
Interest earned on nonaccrual loans | 873,000 | $ 232,000 | 930,000 | $ 366,000 |
Total loans classified as TDRs | 8,900,000 |  | $ 8,900,000 |  | 10,600,000
Number of restructured loans | contract |  |  | 0 |  |
Commitment to extend additional credit for loans classified as TDRs | 0 |  | $ 0 |  |
Charge offs on loans later classified as TDRs |  |  | $ 0 |  |
Number of loans that defaulted that were restructured in the previous twelve months | contract |  |  | 0 | 0 |
Net of government guarantees |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Nonaccrual loans | 7,318,000 |  | $ 7,318,000 |  | 10,672,000
Commercial & industrial loans |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
Nonaccrual loans | 3,496,000 |  | 3,496,000 |  | 4,350,000
Commercial & industrial loans | Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |
PPP loans | $ 31,900,000 |  | $ 31,900,000 |  | $ 118,200,000

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