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Loans and Leases - Modifications to Borrowers Experiencing Financial Difficulty (Details) - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2024 | Sep. 30, 2023
Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 1.0
% of Total Class | 0.00% | 0.00%
Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 227.0 | $ 125.0
% of Total Class | 0.40% | 0.20%
Principal Forgiveness |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 1.0
% of Total Class | 0.00% | 0.00%
Payment Deferrals |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 3.0
% of Total Class | 0.00% | 0.00%
Combination - Term Extension and Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 3.0 | $ 5.0
% of Total Class | 0.00% | 0.00%
Combination - Term Extension, Interest Rate Reduction, and Interest Forgiveness |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 2.0
% of Total Class | 0.00% | 0.00%
Combination - Term Extension, Interest Rate Reduction, and Interest Deferrals |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 16.0
% of Total Class | 0.00% | 0.00%
Consumer: | Consumer Real Estate | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 1.0
% of Total Class | 0.00% | 0.00%
Consumer: | Consumer Real Estate | Interest Rate Reduction | Maximum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans | 9.93% | 8.60%
Consumer: | Consumer Real Estate | Interest Rate Reduction | Minimum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans | 6.56% | 5.00%
Consumer: | Consumer Real Estate | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 2.0
% of Total Class | 0.00% | 0.00%
Weighted average life of loans | 22 years | 10 years
Consumer: | Consumer Real Estate | Principal Forgiveness |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 1.0
% of Total Class | 0.00% | 0.00%
Decrease from loan modification | $ 1.0 | $ 1.3
Consumer: | Consumer Real Estate | Payment Deferrals |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 3.0
% of Total Class | 0.00% | 0.00%
Weighted average life of loans |  | 11 months
Consumer: | Consumer Real Estate | Combination - Term Extension and Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 3.0 | $ 5.0
% of Total Class | 0.00% | 0.00%
Weighted average life of loans | 10 years 10 months 24 days | 13 years 6 months
Consumer: | Consumer Real Estate | Combination - Term Extension and Interest Rate Reduction | Maximum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans | 8.66% | 5.60%
Consumer: | Consumer Real Estate | Combination - Term Extension and Interest Rate Reduction | Minimum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans | 4.06% | 4.80%
Consumer: | Credit Card and Other | Interest Rate Reduction |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 0.0
% of Total Class | 0.00% | 0.00%
Consumer: | Credit Card and Other | Interest Rate Reduction | Maximum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans | 4.78% | 13.30%
Consumer: | Credit Card and Other | Interest Rate Reduction | Minimum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans | 3.65% | 0.00%
Commercial: | Commercial and industrial | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 111.0 | $ 81.0
% of Total Class | 0.30% | 0.20%
Weighted average life of loans | 1 year 4 months 24 days | 1 year
Commercial: | Commercial and industrial | Combination - Term Extension, Interest Rate Reduction, and Interest Forgiveness |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 2.0
% of Total Class | 0.00% | 0.00%
Weighted average life of loans |  | 3 years 8 months 12 days
Decrease from loan modification |  | $ 1.0
Commercial: | Commercial and industrial | Combination - Term Extension, Interest Rate Reduction, and Interest Forgiveness | Maximum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans |  | 11.25%
Commercial: | Commercial and industrial | Combination - Term Extension, Interest Rate Reduction, and Interest Forgiveness | Minimum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans |  | 7.50%
Commercial: | Commercial real estate | Term Extension |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 116.0 | $ 42.0
% of Total Class | 0.80% | 0.30%
Weighted average life of loans | 1 year 6 months | 1 year
Commercial: | Commercial real estate | Combination - Term Extension, Interest Rate Reduction, and Interest Deferrals |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Balance | $ 0.0 | $ 16.0
% of Total Class | 0.00% | 0.10%
Weighted average life of loans |  | 1 year
Decrease from loan modification |  | $ 1.0
Commercial: | Commercial real estate | Combination - Term Extension, Interest Rate Reduction, and Interest Deferrals | Maximum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans |  | 8.65%
Commercial: | Commercial real estate | Combination - Term Extension, Interest Rate Reduction, and Interest Deferrals | Minimum |  |
Financing Receivable, Troubled Debt Restructuring [Line Items] |  |
Weighted average interest rate of loans |  | 8.00%

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