Goodwill and Other Intangible Asset, Amortization (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2016	Mar. 31, 2015	Dec. 31, 2015
Goodwill and Other Intangible Assets
Indefinite-lived trade name intangible asset	$ 186.1		$ 52.3
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	514.5		395.1
Accumulated Amortization	198.7		178.7
Net Carrying Amount	$ 315.8		216.4
Weighted average useful lives of acquired amortizable intangible assets	10 years
Amortization expense	$ 19.7	$ 8.4
Amortization expense estimated for each of the next five fiscal years
Remainder of 2016	35.1
2017	46.5
2018	42.6
2019	40.2
2020	35.1
2021	29.4
Customer relationships
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	373.8		315.6
Accumulated Amortization	131.7		122.6
Net Carrying Amount	$ 242.1		193.0
Weighted average useful lives of acquired amortizable intangible assets	10 years
Proprietary technology
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	$ 106.7		53.8
Accumulated Amortization	33.5		30.9
Net Carrying Amount	$ 73.2		22.9
Weighted average useful lives of acquired amortizable intangible assets	11 years
License agreements
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	$ 6.0		6.0
Accumulated Amortization	$ 6.0		6.0
Weighted average useful lives of acquired amortizable intangible assets	8 years
Backlog and other
Summary of the Company's amortizable intangible assets
Gross Carrying Amount	$ 28.0		19.7
Accumulated Amortization	27.5		19.2
Net Carrying Amount	$ 0.5		$ 0.5
Weighted average useful lives of acquired amortizable intangible assets	1 year