Shareholders' Equity (Schedule Of Total Comprehensive Income And Its Components) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2012	Apr. 30, 2011	Apr. 30, 2012	Apr. 30, 2011
Shareholders' Equity [Abstract]
Net earnings	$ 70,946	$ 61,811	$ 193,320	$ 159,524
Foreign currency translation gain (loss)	5,689	48,929	(57,392)	80,930
Net gain (loss) on hedging derivatives, net of deferred taxes	(448)	229	(21)	363
Pension and postretirement liability adjustment, net of deferred taxes	8,810	664	3,449	1,967
Total comprehensive income	$ 84,997	$ 111,633	$ 139,356	$ 242,784