INCOME TAXES - Loss Carryforwards (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Operating loss carryforwards
Statutory U.S. rate (as a percent)	21.00%	21.00%	21.00%
Net operating loss carryforwards	$ 57.3	$ 67.2
Valuation allowance on deferred tax asset	65.7	65.2
Deferred Tax Liabilities, Net	298.9	397.5
Total deferred	(55.1)	(142.6)	$ (0.9)
Excess tax benefits, share-based compensation		6.0	29.1
Federal
Operating loss carryforwards
Net operating loss carryforwards	0.2
Capital loss carryforward	3.6
Capital loss carryforwards,Subject to Expiration	3.6
Carryforwards subject to expiration	16.4
State
Operating loss carryforwards
Net operating loss carryforwards	16.2
International
Operating loss carryforwards
Net operating loss carryforwards	40.9
Carryforwards subject to expiration	14.1
No expiration	26.8
Tax reduction due to tax holiday	$ 6.6	$ 5.8	$ 2.9
Tax holiday impact on diluted earnings per share (in dollars per share)	$ 0.02	$ 0.02	$ 0.01
International | Luxembourg
Operating loss carryforwards
Operating loss carryforward, not reported in financial statements	$ 1,300.0