Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2013	Apr. 30, 2012	Apr. 30, 2013	Apr. 30, 2012
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Net earnings	$ 69,842	$ 70,946	$ 174,768	$ 193,320
Foreign currency translation gain (loss)	(13,563)	5,689	29,401	(57,392)
Gain (loss) on hedging derivatives, net of deferred taxes of ($72), $145, ($269), and ($169), respectively	13	(448)	144	(21)
Pension and postretirement liability adjustment, net of deferred taxes of ($7,682), ($4,978), ($14,963), and ($9,219), respectively	16,214	8,810	31,417	3,449
Total comprehensive income	$ 72,506	$ 84,997	$ 235,730	$ 139,356