PROPERTY, PLANT AND EQUIPMENT, NET - Schedule of Property, Plant and Equipment, Net (Details) - USD ($) $ in Millions	Sep. 30, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 238.9	$ 192.6
Less accumulated depreciation	(118.2)	(109.2)
Property, plant and equipment, net	120.7	83.4
Leasehold improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	96.7	67.9
Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 142.2	$ 124.7