Shareholders' Equity (Schedule Of Total Accumulated Other Comprehensive Income (Loss) And Its Components) (Details) (USD $) In Thousands, unless otherwise specified	Oct. 31, 2011	Jul. 31, 2011
Shareholders' Equity [Abstract]
Foreign currency translation adjustment	$ 97,761	$ 131,699
Net gain on cash flow hedging derivatives, net of deferred taxes	798	380
Pension liability adjustment, net of deferred taxes	(107,301)	(92,052)
Total accumulated other comprehensive income (loss)	$ (8,742)	$ 40,027