Acquisition - Additional Information (Details) - USD ($) $ in Millions			12 Months Ended
	Jan. 02, 2015	Sep. 19, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Business Acquisition [Line Items]
Cash consideration			$ 74.9	$ 215.7	$ 0.0
VI-COR
Business Acquisition [Line Items]
Date of business acquisition			Jan. 02, 2015
Cash consideration	$ 74.9
Payment after one year if certain operating performance is achieved	$ 5.0
Business combination, anticipate payment			$ 4.9
VI-COR | Minimum
Business Acquisition [Line Items]
Average life of the amortizable intangible assets, years	5 years
VI-COR | Maximum
Business Acquisition [Line Items]
Average life of the amortizable intangible assets, years	15 years
Lil Drug Store Brands
Business Acquisition [Line Items]
Date of business acquisition			Sep. 19, 2014
Cash consideration		$ 215.7
Approximate annual sales		$ 46.0
Lil Drug Store Brands | Minimum
Business Acquisition [Line Items]
Average life of the amortizable intangible assets, years						5 years
Lil Drug Store Brands | Maximum
Business Acquisition [Line Items]
Average life of the amortizable intangible assets, years						20 years