Condensed Consolidated Statements of Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Income Statement [Abstract]
Net sales	$ 991.2	$ 852.3
Cost of goods sold	708.3	589.7
Gross profit	282.9	262.6
Selling & administrative expenses	183.3	154.8
Operating income	99.6	107.8
Interest expense, net	(17.3)	(11.1)
Other (expense) income, net	(6.5)	(5.8)
Total other expense	(23.8)	(16.9)
Income before income taxes	75.8	90.9
Provision for income taxes	16.0	27.0
Net income	59.8	63.9
Less: Net income attributable to noncontrolling interest	1.5	1.1
Net income	$ 58.3	$ 62.8
Earnings per share
Basic (USD per share)	$ 1.06	$ 1.13
Diluted (USD per share)	1.05	1.13
Cash dividends per common share (USD per share)	$ 0.77	$ 0.7