Goodwill and Other Intangible Assets (Details 6) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Customer relationships
Intangible assets
Gross Balance	$ 673.9	$ 494.6
Customer relationships | Estimated useful life 5-9 years
Intangible assets
Gross Balance	$ 25.5	$ 27.1
Customer relationships | Estimated useful life 5-9 years | Minimum
Intangible assets
Estimated useful life	5 years	5 years
Customer relationships | Estimated useful life 5-9 years | Maximum
Intangible assets
Estimated useful life	9 years	9 years
Customer relationships | Estimated useful life 10-14 years
Intangible assets
Gross Balance	$ 72.3	$ 72.3
Customer relationships | Estimated useful life 10-14 years | Minimum
Intangible assets
Estimated useful life	10 years	10 years
Customer relationships | Estimated useful life 10-14 years | Maximum
Intangible assets
Estimated useful life	14 years	14 years
Customer relationships | Estimated useful life 15-19 years
Intangible assets
Gross Balance	$ 468.4	$ 287.5
Customer relationships | Estimated useful life 15-19 years | Minimum
Intangible assets
Estimated useful life	15 years	15 years
Customer relationships | Estimated useful life 15-19 years | Maximum
Intangible assets
Estimated useful life	19 years	19 years
Customer relationships | Estimated useful life 20-24 years
Intangible assets
Gross Balance	$ 107.7	$ 107.7
Customer relationships | Estimated useful life 20-24 years | Minimum
Intangible assets
Estimated useful life	20 years	20 years
Customer relationships | Estimated useful life 20-24 years | Maximum
Intangible assets
Estimated useful life	24 years	24 years
Intellectual property | Weighted Average
Intangible assets
Estimated useful life	8 years 7 months 6 days