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Basis of Presentation (Details)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2024
USD ($)
Jun. 30, 2023
USD ($)
Jun. 30, 2024
USD ($)
segment
Jun. 30, 2023
USD ($)
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Number of reportable segments | segment     2  
Cost of services (exclusive of depreciation and amortization) $ 220.1 $ 212.2 $ 444.2 $ 420.0
Selling and administrative expenses $ 174.4 176.4 $ 350.8 351.5
Revision of Prior Period, Reclassification, Adjustment        
Error Corrections and Prior Period Adjustments Restatement [Line Items]        
Cost of services (exclusive of depreciation and amortization)   7.2   19.1
Selling and administrative expenses   $ 7.2   $ 19.1