Derivatives and Hedging Activities - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2022	Dec. 31, 2021
Derivative [Line Items]
Derivative liability, notional amount	$ 2,449.0	$ 1,103.9
Derivative, Collateral, Right to Reclaim Securities	0.0	0.0
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), before Reclassification, Tax	(2.2)
Interest Rate Cash Flow Hedge Gain (Loss) to be Reclassified During Next 12 Months, Net	5.4
Derivative Instruments and Hedges, Assets	191.9	695.6
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	8.1	(4.4)
Unrealized Gain (Loss) on Interest Rate Cash Flow Hedges, Pretax, Accumulated Other Comprehensive Income (Loss)	0.0	$ 0.0
Two-Year Forward Starting, Three-year Pay Fixed Interest Rate Swap
Derivative [Line Items]
Derivative Instruments and Hedges, Assets	500.0
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	23.3
Three-Year Forward Starting, Four-Year Pay Fixed Interest Rate Swap
Derivative [Line Items]
Derivative Instruments and Hedges, Assets	200.0
Hedged Asset, Fair Value Hedge, Cumulative Increase (Decrease)	8.5
Interest Rate Collars
Derivative [Line Items]
Derivative Instruments and Hedges, Assets	300.0
Forward Starting Receive-Fixed Hedges
Derivative [Line Items]
Derivative Instruments and Hedges, Assets	850.0
Collateral Pledged
Derivative [Line Items]
Derivative, Fair Value, Net	0.0
Derivative, Collateral, Right to Reclaim Securities	$ 0.0

Amount of right to receive securities collateral under master netting arrangements that have not been offset against derivative liabilities.

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Fair value of the assets less the liabilities of a derivative or group of derivatives.

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Carrying amount as of the balance sheet date of the asset arising from derivative instruments and hedging activities, which are expected to be converted into cash or otherwise disposed of within a year or the normal operating cycle, if longer.

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Nominal or face amount used to calculate payments on the derivative liability.

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Amount of cumulative increase (decrease) in fair value of hedged asset in fair value hedge, attributable to hedged risk.

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The estimated net amount of unrealized gains or losses on interest rate cash flow hedges as of the balance sheet date expected to be reclassified to earnings within the next twelve months.

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Amount, before reclassification, of tax expense (benefit) for gain (loss) from derivative instrument designated and qualifying as cash flow hedge included in assessment of hedge effectiveness.

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Amount of unrealized gain (loss) related to the increase or decrease in fair value of interest rate derivatives designated as cash flow hedging instruments, which was recorded in accumulated other comprehensive income to the extent that the cash flow hedge was determined to be effective.

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