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PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Property, plant and equipment.      
Gross property, plant and equipment $ 848.7 $ 816.8  
Less: Accumulated depreciation (383.1) (387.2)  
Net property, plant and equipment 465.6 429.6  
Depreciation 42.4 44.3 $ 42.3
Property      
Property, plant and equipment.      
Gross property, plant and equipment 40.2 53.1  
Plant      
Property, plant and equipment.      
Gross property, plant and equipment 246.8 284.4  
Equipment      
Property, plant and equipment.      
Gross property, plant and equipment 418.9 402.4  
Leasehold improvements      
Property, plant and equipment.      
Gross property, plant and equipment 49.9 50.0  
Construction in progress      
Property, plant and equipment.      
Gross property, plant and equipment $ 92.9 $ 26.9