Business Combinations - Consideration Paid and Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Summary of the aggregate consideration paid and the aggregate amounts of the assets acquired and liabilities assumed
Accounts receivable	$ 6.9
Inventory	109.5	$ 0.1
Other current assets	2.5
Property and equipment	13.2	0.1
Indefinite-lived intangibles	263.0	4.6
Other non-current assets	0.1
Current liabilities	(22.0)	(4.4)
Non-current liabilities	(2.8)
Total consideration	370.4	0.4
Consideration transferred through common stock issuance	(32.4)
Contingent consideration	(20.0)
Seller financed/assumed debt	(3.8)
Total cash used in acquisitions	$ 314.2	$ 0.4