Condensed Consolidated Statements Of Earnings (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Oct. 31, 2012		Oct. 31, 2011
Condensed Consolidated Statements Of Earnings [Abstract]
Net sales	$ 588,947		$ 608,295
Cost of sales	390,654		393,361
Gross margin	198,293		214,934
Operating expenses	124,756		124,607
Operating income, net	73,537		90,327
Interest expense	2,671		3,170
Other income, net	(5,812)		(4,860)
Earnings before income taxes	76,678		92,017
Income taxes	22,565		23,464
Net earnings	$ 54,113		$ 68,553
Weighted average shares - basic	149,149,429	[1]	150,513,892	[1]
Weighted average shares - diluted	151,524,125	[1]	153,047,198	[1]
Net earnings per share - basic	$ 0.36	[1]	$ 0.46	[1]
Net earnings per share - diluted	$ 0.36	[1]	$ 0.45	[1]
Dividends paid per share	$ 0.090		$ 0.075

[1] Prior year shares and per share amounts reflect the impact of the Company's two-for-one stock split that occurred during the third quarter of Fiscal 2012.