Other Intangible Assets - Schedule of Amortization Expense (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ (5.2)	$ (3.9)	$ (15.6)	$ (12.7)
Product Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(2.8)	(2.8)
Brand Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(0.9)	(0.4)
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(2.6)	(1.7)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(5.1)	(3.5)
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			0.0	(0.2)
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(0.7)	(0.6)
Marketing Related [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(0.7)	(0.7)
Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			$ (2.8)	$ (2.8)