Property and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Property and Equipment
Property and equipment before accumulated depreciation and amortization	$ 989.1	$ 966.9
Less: Accumulated depreciation and amortization	475.8	451.6
Total property and equipment, net	513.3	515.3
Depreciation expense	72.3	68.3	$ 64.4
Computer software costs
Computer software costs	260.8	289.2
Less: Accumulated amortization	171.7	175.0
Computer software costs, net	89.1	114.2
Amortization expense related to computer software costs	23.2	25.4	$ 21.0
Land
Property and Equipment
Property and equipment before accumulated depreciation and amortization	81.4	81.9
Buildings and leasehold improvements
Property and Equipment
Property and equipment before accumulated depreciation and amortization	$ 110.2	108.4
Buildings and leasehold improvements | Minimum
Property and Equipment
Estimated useful lives	3 years
Buildings and leasehold improvements | Maximum
Property and Equipment
Estimated useful lives	40 years
Computer equipment and software costs
Property and Equipment
Property and equipment before accumulated depreciation and amortization	$ 301.4	329.2
Computer equipment and software costs | Minimum
Property and Equipment
Estimated useful lives	3 years
Computer equipment and software costs | Maximum
Property and Equipment
Estimated useful lives	9 years
Machinery, equipment and vehicles
Property and Equipment
Property and equipment before accumulated depreciation and amortization	$ 475.1	433.4
Machinery, equipment and vehicles | Minimum
Property and Equipment
Estimated useful lives	3 years
Machinery, equipment and vehicles | Maximum
Property and Equipment
Estimated useful lives	40 years
Furniture and Fixtures
Property and Equipment
Property and equipment before accumulated depreciation and amortization	$ 20.9	14.1
Furniture and Fixtures | Minimum
Property and Equipment
Estimated useful lives	3 years
Furniture and Fixtures | Maximum
Property and Equipment
Estimated useful lives	9 years
Construction in Progress [Member]
Computer software costs
Computer software costs	$ 0.1	$ 0.9