Goodwill and Intangible Assets (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Sep. 30, 2015	Sep. 30, 2015	Dec. 31, 2014
Goodwill and Intangible Assets Disclosure [Line Items]
Finite lived intangible assets, original cost	$ 355.6	$ 355.6
Accumulated Amortization	118.6	118.6
Intangible assets, net book value	237.0	237.0	$ 250.7
Customer contracts and relationships
Goodwill and Intangible Assets Disclosure [Line Items]
Finite lived intangible assets, original cost	131.3	131.3
Accumulated Amortization	18.7	18.7
Intangible assets, net book value	$ 112.6	$ 112.6
Customer contracts and relationships | Minimum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	8 years	3 years
Customer contracts and relationships | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	30 years	5 years
Acquired technologies
Goodwill and Intangible Assets Disclosure [Line Items]
Finite lived intangible assets, original cost	$ 164.7	$ 164.7
Accumulated Amortization	78.1	78.1
Intangible assets, net book value	$ 86.6	86.6
Acquired technologies | Minimum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	5 years
Acquired technologies | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	34 years
Trademarks and patents
Goodwill and Intangible Assets Disclosure [Line Items]
Finite lived intangible assets, original cost	$ 28.4	28.4
Accumulated Amortization	17.5	17.5
Intangible assets, net book value	$ 10.9	10.9
Trademarks and patents | Minimum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	3 years
Trademarks and patents | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	20 years
Covenants not to compete
Goodwill and Intangible Assets Disclosure [Line Items]
Finite lived intangible assets, original cost	$ 2.0	2.0
Accumulated Amortization	0.8	0.8
Intangible assets, net book value	$ 1.2	1.2
Covenants not to compete | Minimum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	4 years
Covenants not to compete | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	5 years
Trade names
Goodwill and Intangible Assets Disclosure [Line Items]
Finite lived intangible assets, original cost	$ 29.2	29.2
Accumulated Amortization	3.5	3.5
Intangible assets, net book value	$ 25.7	$ 25.7
Trade names | Minimum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	5 years	5 years
Trade names | Maximum
Goodwill and Intangible Assets Disclosure [Line Items]
Useful life (years)	20 years	20 years