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v3.22.2.2

Loans and Allowance for Loan Losses (Narrative) (Details) | 3 Months Ended | 9 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Sep. 30, 2022 USD ($) contract | Sep. 30, 2021 USD ($) contract | Sep. 30, 2022 USD ($) contract | Sep. 30, 2021 USD ($) contract | Jun. 30, 2022 USD ($) | Dec. 31, 2021 USD ($) | Jun. 30, 2021 USD ($) | Dec. 31, 2020 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Interest income on non-accrual loans outstanding | $ 1,200,000 | $ 4,400,000 | $ 6,600,000 | $ 10,700,000 |  |  |  |
Interest income, cash basis method | 1,300,000 | 646,000 | 2,200,000 | 1,900,000 |  |  |  |
Total loans | 42,571,458,000 |  | 42,571,458,000 |  |  | $ 39,311,958,000 |  |
Allowance for loan losses | 421,359,000 | 492,243,000 | 421,359,000 | 492,243,000 | $ 407,837,000 | 427,597,000 | $ 516,708,000 | $ 605,736,000
Reserve for unfunded commitments | 57,900,000 |  | 57,900,000 |  |  | 41,900,000 |  |
All financing receivable, allowance for credit loss | $ 479,300,000 |  | 479,300,000 |  |  | $ 469,500,000 |  |
Allowance for credit loss, increase (decrease) |  |  | $ 9,800,000 |  |  |  |  |
ACL to loans ratio | 1.13% |  | 1.13% |  |  |  |  |
Decrease in ACL to loans ratio |  |  | 0.0006 |  |  |  |  |
Allowance for credit loss, reasonable and supportable forecast period |  |  | 2 years |  |  |  |  |
Allowance for credit loss, straight-line basis historical period |  |  | 1 year |  |  |  |  |
Downside bias | 70.00% |  | 70.00% |  |  | 43.00% |  |
Provision for (reversal of) credit losses | $ 25,581,000 | (7,868,000) | $ 49,669,000 | (51,041,000) |  |  |  |
Net chargeoff amount | 4,700,000 |  | 39,900,000 |  |  |  |  |
Financing receivable, allowance for credit loss, period increase (decrease) from increase in size of loan profile | 3,000,000 |  | 10,500,000 |  |  |  |  |
Financing receivable, purchase | 152,900,000 |  | 514,500,000 |  |  |  |  |
Recorded investment | 14,932,000 | $ 15,229,000 | 93,857,000 | $ 37,504,000 |  |  |  |
Commitments to land additional funds to TDRs | $ 0 |  | $ 0 |  |  | $ 0 |  |
Troubled Debt Restructuring That Subsequently Defaults |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Number of contracts | contract | 1 | 2 | 4 | 7 |  |  |  |
Recorded investment | $ 109,000 | $ 536,000 | $ 539,000 | $ 708,000 |  |  |  |
Baseline |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Projected unemployment rate | 4.50% |  | 4.50% |  |  | 5.10% |  |
Average GDP | 1.40% |  | 1.40% |  |  | 2.20% |  |
Substandard |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Retail loan substandard period (in days) |  |  | 90 days |  |  |  |  |
Loss |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Retail loan charge off (in days) |  |  | 120 days |  |  |  |  |
Total commercial and industrial |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Total loans | $ 21,212,516,000 |  | $ 21,212,516,000 |  |  | $ 19,622,924,000 |  |
Recorded investment | 10,332,000 | $ 9,036,000 | 69,964,000 | $ 20,583,000 |  |  |  |
Total commercial and industrial | Small Business Administration (SBA), CARES Act, Paycheck Protection Program |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Total loans | 42,800,000 |  | 42,800,000 |  |  |  |  |
Asset Pledged as Collateral |  |  |  |  |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |  |  |  |  |
Total loans | $ 14,820,000,000 |  | $ 14,820,000,000 |  |  | $ 14,190,000,000 |  |

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