INCOME TAXES - Summary of Valuation Allowance For Deferred Tax Assets (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Taxes [Line Items]
Beginning Balance	$ 266.3	$ 326.1	$ 264.1
Additions	7.9	16.6	67.0
Deductions	(137.4)	(83.0)	(5.3)
Currency translation	(7.3)	6.6	0.3
Ending Balance	129.5	266.3	326.1
CUSA
Income Taxes [Line Items]
Beginning Balance	218.5	283.2	240.9
Additions	4.2	5.9	47.0
Deductions	(131.7)	(77.2)	(4.9)
Currency translation	(7.3)	6.6	0.2
Ending Balance	$ 83.7	$ 218.5	$ 283.2