Other Intangible Assets - Schedule of Amortization Expense (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ (4.4)	$ (2.1)	$ (8.8)	$ (4.2)
Product Rights [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(1.9)	0
Brand Names [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(0.3)	0
Technology [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(1.2)	(1.0)
Customer Relationships [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(2.5)	(1.8)
Patents [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(0.2)	(0.2)
Internally Developed Software [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(1.9)	0
Non-Compete Agreements [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			(0.4)	(0.4)
Marketing Related [Member]
Finite-Lived Intangible Assets [Line Items]
Amortization expense			$ (0.4)	$ (0.8)