Derivatives and Hedging Activities - Fair Value and Presentation in the Consolidated Balance Sheets for Derivatives (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Derivatives, Fair Value [Line Items]
Derivative Assets	$ 57.8	$ 16.0
Derivative Liabilities	0.0	2.8
Designated as Hedging Instrument | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	57.8	15.9
Derivative Liabilities	0.0	2.5
Designated as Hedging Instrument | Accrued expenses and other current liabilities | Interest rate cap contract | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	0.0	0.1
Designated as Hedging Instrument | Accrued expenses and other current liabilities | Interest rate swap contracts | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	0.0	2.4
Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets | Interest rate cap contract | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	0.8	0.0
Derivative Liabilities	0.0	0.0
Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets | Interest rate swap contracts | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	19.2	0.0
Derivative Liabilities	0.0	0.0
Designated as Hedging Instrument | Prepaid Expenses and Other Current Assets | Forward-starting interest rate swap contracts - April 2022 | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.7
Derivative Liabilities	0.0	0.0
Designated as Hedging Instrument | Deferred costs and other assets, net of current portion | Interest rate cap contract | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	0.6	0.0
Derivative Liabilities	0.0	0.0
Designated as Hedging Instrument | Deferred costs and other assets, net of current portion | Interest rate swap contracts | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	37.2	0.0
Derivative Liabilities	0.0	0.0
Designated as Hedging Instrument | Deferred costs and other assets, net of current portion | Forward-starting interest rate swap contracts - April 2022 | Cash Flow Hedging
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	15.2
Derivative Liabilities	0.0	0.0
Not Designated as Hedging Instrument
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.1
Derivative Liabilities	0.0	0.3
Not Designated as Hedging Instrument | Accrued expenses and other current liabilities | Interest rate cap contract
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.0
Derivative Liabilities	0.0	0.3
Not Designated as Hedging Instrument | Deferred costs and other assets, net of current portion | Interest rate cap contract
Derivatives, Fair Value [Line Items]
Derivative Assets	0.0	0.1
Derivative Liabilities	$ 0.0	$ 0.0