LEASES - Components of Lease Expense (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Leases [Abstract]
Depreciation of right-of-use assets	$ 2.5	$ 3.4
Interest on lease liabilities	0.2	0.2
Operating lease cost	18.8	19.4
Short-term lease cost	11.1	11.7
Variable lease cost	5.3	5.1
Sublease income	(0.8)	(0.8)
Total lease expense	$ 37.1	$ 39.0