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Share-Based Compensation - Schedule of Share Based Compensation Expense (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Pre-tax share-based compensation expense $ 17.2 $ 19.4 $ 51.9 $ 59.5
Less: Income tax benefit (3.6) (4.1) (10.9) (12.5)
Total share-based compensation expense, net of tax 13.6 15.3 41.0 47.0
Cost of revenue        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Pre-tax share-based compensation expense 2.0 2.8 7.4 9.0
Selling, general and administrative expenses        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Pre-tax share-based compensation expense $ 15.2 $ 16.6 $ 44.5 $ 50.5