Condensed Consolidated Statements Of Cash Flows (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
Operating Activities
Net earnings	$ 119,932	$ 104,926
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization	33,167	32,896
Changes in operating assets and liabilities	94	(26,831)
Tax benefit of equity plans	(6,864)	(8,560)
Stock compensation plan expense	7,137	6,218
Deferred taxes	(6,143)	(2,495)
Loss on sale of business	905
Other, net	3,377	3,026
Net cash provided by operating activities	151,605	109,180
Investing Activities
Net expenditures on property, plant, and equipment	(42,848)	(51,753)
Purchases of short-term investments	(46,719)	(33,246)
Proceeds from sale of short-term investments	47,369	64,496
Net cash used in investing activities	(42,198)	(20,503)
Financing Activities
Purchase of treasury stock	(66,331)	(60,975)
Repayments of long-term debt	(80,665)	(887)
Change in short-term borrowings	96,901	(37,647)
Dividends paid	(39,414)	(26,495)
Tax benefit of equity plans	6,864	8,560
Exercise of stock options	10,331	9,152
Net cash used in financing activities	(72,314)	(108,292)
Effect of exchange rate changes on cash	(2,112)	10,434
Increase (decrease) in cash and cash equivalents	34,981	(9,181)
Cash and cash equivalents, beginning of year	224,138	225,789
Cash and cash equivalents, end of period	$ 259,119	$ 216,608