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PROPERTY, BUILDINGS AND EQUIPMENT - PROPERTY, BUILDINGS AND EQUIPMENT (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Property, Plant and Equipment [Abstract]      
Depreciation expense $ 56.3 $ 47.8 $ 51.4
Capitalized software amortization 36.4 38.3 $ 27.5
Unamortized software cost 78.2 89.2  
Property, Plant and Equipment [Line Items]      
Hosting Arrangement, Service Contract, Implementation Cost, Capitalized, after Accumulated Amortization 195.4 104.1  
Finance Lease, Right-of-Use Asset, Accumulated Amortization 19.9 17.1  
Finance Lease, Right-of-Use Asset, before Accumulated Amortization 51.9 38.8  
Software and Software Development Costs [Member]      
Property, Plant and Equipment [Line Items]      
Property, buildings and equipment, gross $ 292.6 $ 272.6