Property and Equipment - Schedule of Property and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Property, Plant and Equipment [Line Items]
Revenue generating assets	$ 212.0	$ 0.0
Building and leasehold improvements	134.2	129.1
Computer and data processing equipment	132.0	105.4
Machinery and equipment	45.4	44.1
Land	27.7	27.7
Computer software	25.1	22.2
Construction in progress	23.3	24.5
Furniture and fixtures	20.5	18.9
Property and equipment, gross	620.2	371.9
Less: accumulated depreciation	(257.1)	(215.8)
Property and equipment, net	$ 363.1	$ 156.1
Revenue generating assets
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	1 year
Minimum | Building and leasehold improvements
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	5 years
Minimum | Computer and data processing equipment
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	3 years
Minimum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	5 years
Minimum | Computer software
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	3 years
Minimum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	5 years
Maximum | Building and leasehold improvements
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	25 years
Maximum | Computer and data processing equipment
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	5 years
Maximum | Machinery and equipment
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	10 years
Maximum | Computer software
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	5 years
Maximum | Furniture and fixtures
Property, Plant and Equipment [Line Items]
Useful Lives (Years)	10 years