DEBT - Schedule of Debt (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Unamortized discount and issuance costs	$ (21.4)	$ (27.2)
Long-term debt, gross	2,930.8	2,940.9
Less: current portion	(21.2)	(21.8)
Total long-term debt, net of current portion	$ 2,909.6	$ 2,919.1
Term Loan due 2027 at 7.20% and 7.97% at September 30, 2024 and December 31, 2023, respectively | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Weighted average borrowing rate (as percent)	7.20%	7.97%
Long-term debt, gross	$ 2,102.2	$ 2,118.1
Senior Secured Notes due 2028 at 4.125% at both September 30, 2024 and December 31, 2023
Debt Instrument [Line Items]
Weighted average borrowing rate (as percent)	4.125%	4.125%
Aggregate principal amount	$ 850.0	$ 850.0