Supplementary Balance Sheet Information (Composition Of Property, Plant And Equipment) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Balance Sheet Related Disclosures [Abstract]
Property, Plant and Equipment Impairment or Disposal Disclosure	67.4
Depreciation	$ 180,800	$ 156,800	$ 144,000
Land and land improvements	553,655	440,300
Buildings and building improvements	1,210,864	1,025,515
Machinery and equipment	987,080	866,008
Furniture and fixtures	280,292	284,959
Software	108,048	103,754
Vehicles	59,596	58,159
Construction in progress	49,359	39,396
Gross property, plant and equipment	3,248,894	2,818,091
Accumulated depreciation	(1,534,740)	(1,454,277)
Property, plant and equipment, net	$ 1,714,154	$ 1,363,814