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v3.21.2

Loans and Allowance for Credit Losses - Additional Information (Details) | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2021 USD ($) portfolio application segment | Sep. 30, 2020 USD ($) | Sep. 30, 2021 USD ($) loan portfolio application segment | Sep. 30, 2020 USD ($) | Dec. 31, 2020 USD ($) application
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Number of loan portfolios | portfolio | 4 |  | 4 |  |
Number of loan segments | segment | 7 |  | 7 |  |
Total loans | $ 13,584,828,000 |  | $ 13,584,828,000 |  | $ 13,786,479,000
Accrued interest receivable on loans | 47,200,000 |  | $ 47,200,000 |  | 57,300,000
Loan placed on nonaccrual when past due, number of days |  |  | 90 days |  |
Loan participations | 1,124,000,000 |  | $ 1,124,000,000 |  |
Loan participations sold | 529,700,000 |  | 529,700,000 |  |
Loan participations retained | 594,300,000 |  | $ 594,300,000 |  |
TDR term |  |  | 6 months |  |
Minimum number of days for loan charge off to be recorded |  |  | 120 days |  |
Maximum number of days for loan charge off to be recorded |  |  | 180 days |  |
Financing receivable TDRs included with non-accrual loans | 12,800,000 |  | $ 12,800,000 |  | 14,900,000
Financing receivable TDR specific reserves | 800,000 |  | 800,000 |  | 1,600,000
Unfunded commitments on TDRs | 0 |  | $ 0 |  | $ 0
Financing receivable, TDR, number of loans qualified for removal | loan |  |  | 1 |  |
Charge-offs | $ (56,000) | $ (3,259,000) | $ (79,000) | $ (1,351,000) |
Number of days for a loan to be considered to be in payment default |  |  | 90 days |  |
Troubled Debt Restructurings During Period |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Charge-offs |  |  | $ 0 |  |
Commercial |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
PPP, number of applications processed and approved (over) | application | 6,200 |  | 6,200 |  | 9,700
PPP, amount of funding | $ 583,700,000 |  | $ 583,700,000 |  | $ 1,500,000,000
Total loans | 3,505,183,000 |  | 3,505,183,000 |  | 3,956,422,000
Charge-offs | (1,000) | (1,326,000) | (1,000) | (632,000) |
Commercial | PPP Loans |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Total loans | 354,900,000 |  | 354,900,000 |  | 943,000,000
Commercial real estate |  |  |  |  |
Financing Receivable, Allowance for Credit Losses [Line Items] |  |  |  |  |
Total loans | $ 6,290,632,000 |  | $ 6,290,632,000 |  | $ 5,946,512,000
Percentage of risk-based capital | 233.00% |  | 233.00% |  |
Regulatory guideline limit | 300.00% |  | 300.00% |  |
Charge-offs | $ (58,000) | $ (1,993,000) | $ (72,000) | $ (741,000) |

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