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v3.25.1

Derivatives and Hedging Activities - Schedule of Derivative Instruments, Effect on Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2025 | Mar. 31, 2024 | Dec. 31, 2024
Derivative [Line Items] |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax | $ 0.3 | $ (4.4) |
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net | 1.6 |  |
Financial Instruments | 0.0 |  | $ 0.0
Derivative Asset, Notional Amount | 1,399.9 |  | 1,420.5
Derivative Asset, Estimated Fair Value | 35.3 |  | 44.9
Derivative Liability, Notional Amount | 2,086.4 |  | 2,107.0
Derivative Liabilities, Estimated Fair Value | 107.3 |  | 133.8
Collateral Pledged |  |  |
Derivative [Line Items] |  |  |
Derivative, Fair Value, Net | 0.0 |  |
Financial Instruments | 0.0 |  |
Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Amount of net fee income recognized in other noninterest income | 0.0 | 0.0 |
Interest Rate Swap |  |  |
Derivative [Line Items] |  |  |
Derivative Instruments and Hedges, Assets | 850.0 |  |
Interest Rate Swap | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Notional Amount | 0.0 |  | 0.0
Derivative Asset, Estimated Fair Value | 0.0 |  | 0.0
Derivative Liability, Notional Amount | 300.0 |  | 300.0
Derivative Liabilities, Estimated Fair Value | 1.0 |  | 2.8
Interest Rate Swap | Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Notional Amount | 1,390.7 |  | 1,415.4
Derivative Asset, Estimated Fair Value | 35.2 |  | 44.9
Derivative Liability, Notional Amount | 1,390.7 |  | 1,415.4
Derivative Liabilities, Estimated Fair Value | 105.7 |  | 130.0
Risk Participation Agreements | Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Derivative Liability, Notional Amount | 89.0 |  | 91.6
Derivative Liabilities, Estimated Fair Value | 0.0 |  | 0.0
Forward Contracts | Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Derivative, Fair Value, Net | 0.0 |  | 0.0
Derivative Asset, Notional Amount | 0.0 |  | 2.4
Derivative Liability, Notional Amount | 6.7 |  | 0.0
Derivative Liabilities, Estimated Fair Value | 0.0 |  | 0.0
Interest Rate Lock Commitments | Not Designated as Hedging Instrument |  |  |
Derivative [Line Items] |  |  |
Derivative Asset, Notional Amount | 9.2 |  | 2.7
Derivative Asset, Estimated Fair Value | 0.1 |  | 0.0
Interest Rate Collars |  |  |
Derivative [Line Items] |  |  |
Derivative Instruments and Hedges, Assets | 300.0 |  |
Interest Rate Collars | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Derivative Liability, Notional Amount | 300.0 |  | 300.0
Derivative Liabilities, Estimated Fair Value | 0.6 |  | $ 1.0
Cash Flow Hedging [Member] | Interest Rate Swap | Designated as Hedging Instrument [Member] |  |  |
Derivative [Line Items] |  |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax | $ (1.0) | $ 17.4 |

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