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Derivatives and Hedging Activities - Narrative (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Sep. 30, 2022
Derivative [Line Items] |  |  |
Derivative liability, notional amount | $ 2,295,700,000 | $ 2,449,000,000 |
Derivative, Collateral, Right to Reclaim Securities | 0 | 0 |
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net | 9,100,000 |  |
Derivative Instruments and Hedges, Assets | 193,300,000 | 191,900,000 |
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) | 6,700,000 | 8,100,000 |
Derivative Instruments and Hedges, Noncurrent | 900,000,000 |  |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax | 6,500,000 | 2,200,000 |
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), Reclassification, before Tax | (7,500,000) |  |
Interest Income, Hedge Basis Adjustment, Portfolio Layer Method, Increase (Decrease) | 1,400,000 |  |
Three-Year Forward Starting, Four-Year Pay Fixed Interest Rate Swap |  |  |
Derivative [Line Items] |  |  |
Derivative Instruments and Hedges, Assets |  |  | $ 200,000,000
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) |  |  | $ 8,500,000
Two-Year Forward Starting, Three-year Pay Fixed Interest Rate Swap |  |  |
Derivative [Line Items] |  |  |
Derivative Instruments and Hedges, Assets | 500,000,000 |  |
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease) | 23,300,000 |  |
Interest Rate Collars |  |  |
Derivative [Line Items] |  |  |
Derivative Instruments and Hedges, Assets | 300,000,000 |  |
Interest Rate Swap |  |  |
Derivative [Line Items] |  |  |
Derivative, Collateral, Right to Reclaim Securities | 0 | $ 0 |
Derivative Instruments and Hedges, Assets | 850,000,000 |  |
Interest Rate Swap and Interest Rate Collar |  |  |
Derivative [Line Items] |  |  |
Derivative Instruments and Hedges, Assets | 1,150,000,000 |  |
Collateral Pledged |  |  |
Derivative [Line Items] |  |  |
Derivative, Fair Value, Net | 0 |  |
Derivative, Collateral, Right to Reclaim Securities | $ 0 |  |

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