Long-Term Debt - Composition of Long-Term Debt (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term debt	$ 3,869.9	$ 3,876.1
Less unamortized original issue discount and debt issuance costs	(57.5)	(59.7)
Less: current portion of long-term debt	(17.6)	(17.9)
Long-term debt, net of current portion	3,794.8	3,798.5
2027 Term Loans | Secured Debt
Debt Instrument [Line Items]
Long-term debt	$ 721.9	$ 723.8
Effective interest rate percentage	7.70%	7.40%
2029 Term Loans | Secured Debt
Debt Instrument [Line Items]
Long-term debt	$ 1,748.0	$ 1,752.3
Effective interest rate percentage	7.90%	8.40%
2027 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 600.0	$ 600.0
Effective interest rate percentage	5.50%	5.40%
2029 Senior Notes | Senior Notes
Debt Instrument [Line Items]
Long-term debt	$ 800.0	$ 800.0
Effective interest rate percentage	3.70%	3.60%
Revolver | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Long-term debt	$ 0.0	$ 0.0