Other Intangible Assets - Schedule of Amortization Expense (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ (5.3)	$ (4.4)	$ (10.4)	$ (8.8)
Product Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(1.9)	(1.9)
Brand Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(0.6)	(0.3)
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(1.7)	(1.2)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(3.4)	(2.5)
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			(0.5)	(0.4)
Marketing Related [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(0.4)	(0.4)
Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			$ (1.9)	$ (1.9)