SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Summary of Noncontrolling Interests Activities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Equity, Attributable to Noncontrolling Interest [Roll Forward]
Redeemable noncontrolling interests, beginning of period	$ 135.1	$ 0.0
Fair value of the redeemable noncontrolling interest at the acquisition date	0.0	176.4
Net (loss) income attributable to redeemable noncontrolling interest	(1.5)	1.5
Return of capital to redeemable noncontrolling interest	0.0	(42.8)
Effect of foreign currency translation attributable to redeemable noncontrolling interest	(28.4)	0.0
Redeemable noncontrolling interests, end of period	$ 105.2	$ 135.1