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PROPERTY, PLANT AND EQUIPMENT (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Property, plant and equipment.      
Property, plant and equipment – gross $ 995.0 $ 848.7  
Less: Accumulated depreciation (425.2) (383.1)  
Property, plant and equipment – net 569.8 465.6  
Depreciation 51.7 42.4 $ 44.3
Property      
Property, plant and equipment.      
Property, plant and equipment – gross 75.1 40.2  
Plant      
Property, plant and equipment.      
Property, plant and equipment – gross 302.4 246.8  
Equipment      
Property, plant and equipment.      
Property, plant and equipment – gross 492.3 418.9  
Leasehold improvements      
Property, plant and equipment.      
Property, plant and equipment – gross 51.8 49.9  
Construction in progress      
Property, plant and equipment.      
Property, plant and equipment – gross $ 73.4 $ 92.9