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SEGMENT INFORMATION - Expenses (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Segment information        
Stock-based compensation expense $ 16.6 $ 16.7 $ 49.2 $ 52.4
Corporate and Unallocated        
Segment information        
Payroll costs 69.4 63.4 207.6 189.7
Stock-based compensation expense 16.2 16.7 48.5 52.2
Professional service expenses 26.0 19.3 69.3 60.6
Intellectual property claim       16.9
Other operating expenses $ 17.2 $ 14.8 $ 50.8 $ 22.4