Condensed Consolidated Statements Of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Oct. 31, 2017	Oct. 31, 2016
Income Statement [Abstract]
Net sales	$ 644.8	$ 553.0
Cost of sales	420.5	358.8
Gross profit	224.3	194.2
Operating expenses	133.6	117.8
Operating income	90.7	76.4
Other expense (income), net	0.8	(8.1)
Interest expense	5.2	4.8
Earnings before income taxes	84.7	79.7
Income taxes	23.8	21.7
Net earnings	$ 60.9	$ 58.0
Weighted average shares - basic (in shares)	130.8	133.4
Weighted average shares - diluted (in shares)	132.7	134.6
Net earnings per share - basic (in usd per share)	$ 0.47	$ 0.43
Net earnings per share - diluted (in usd per share)	0.46	0.43
Cash dividends paid per share (in usd per share)	$ 0.180	$ 0.175