Goodwill and Intangible Assets - Additional Information (Details) - USD ($) $ in Millions		3 Months Ended			12 Months Ended
		Dec. 31, 2016		Dec. 31, 2015	Sep. 30, 2016
Goodwill And Intangible Assets [Line Items]
Amortization of Intangible Assets		$ 20.1	[1]	$ 15.1
Finite-lived Intangible Assets Acquired		0.4
Indefinite-lived Intangible Assets Acquired		$ 442.6
Customer Relationships [Member]
Goodwill And Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	[2]	18 years 25 days
Finite-lived Intangible Assets Acquired		$ 375.0
Trade Names [Member]
Goodwill And Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired		$ 4.3
Trademarks [Member]
Goodwill And Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired					$ 63.3
Minimum [Member]
Goodwill And Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		1 year
Maximum [Member]
Goodwill And Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		20 years
Weighted Average [Member]
Goodwill And Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life		17 years 10 months 24 days

[1] As of September 30, 2016

[2] As of December 31, 2016