Supplemental Financial Information - Schedule of Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	$ 18.9	$ 17.9
Cost of services
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	18.6	17.1
Selling, general and administrative
Property, Plant and Equipment [Line Items]
Total depreciation and amortization	$ 0.3	$ 0.8