Shareholders' Equity (Schedule Of Total Comprehensive Income And Its Components) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2012	Jan. 31, 2011
Shareholders' Equity [Abstract]
Net earnings	$ 53,821	$ 44,579	$ 122,374	$ 97,713
Foreign currency translation gain (loss)	(29,143)	(3,670)	(63,081)	32,102
Currency realization upon sale of business		(101)		(101)
Net gain on hedging derivatives, net of deferred taxes	9	389	427	134
Pension and postretirement liability adjustment, net of deferred taxes	9,888	1,444	(5,361)	1,303
Total comprehensive income	$ 34,575	$ 42,641	$ 54,359	$ 131,151