Property and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property and equipment	$ 263.6	$ 228.8
Less: accumulated depreciation	(197.3)	(173.8)
Total	66.3	55.0
Depreciation	26.3	28.0	$ 28.3
Selling, General and Administrative Expenses
Property, Plant and Equipment [Line Items]
Depreciation	25.3	23.4	23.7
Cost of Sales [Member]
Property, Plant and Equipment [Line Items]
Depreciation	1.0	4.6	$ 4.6
Computer hardware and software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	201.3	172.2
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	27.9	24.0
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	27.0	24.4
Work-in-progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 7.4	$ 8.2