Property and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property and equipment	$ 243.6	$ 263.6
Less: accumulated depreciation	(162.2)	(197.3)
Total	81.4	66.3
Depreciation	27.9	26.3	$ 28.0
Selling, General and Administrative Expenses
Property, Plant and Equipment [Line Items]
Depreciation	26.5	25.3	23.4
Cost of Sales [Member]
Property, Plant and Equipment [Line Items]
Depreciation	1.4	1.0	$ 4.6
Computer hardware and software [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	180.5	201.3
Furniture, fixtures and equipment [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	29.6	27.9
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	27.0	27.0
Work-in-progress [Member]
Property, Plant and Equipment [Line Items]
Property and equipment	$ 6.5	$ 7.4

The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount after accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Amount of accumulated depreciation of long-lived, physical assets used to produce goods and services and not intended for resale, classified as other.

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