Condensed Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2013	Jan. 31, 2012	Jan. 31, 2013	Jan. 31, 2012
Condensed Consolidated Statements Of Comprehensive Income [Abstract]
Net earnings	$ 50,813	$ 53,821	$ 104,926	$ 122,374
Foreign currency translation gain (loss)	17,112	(29,143)	42,964	(63,081)
Gain on hedging derivatives, net of deferred taxes of ($307), ($58), ($198), and ($314), respectively	424	9	131	427
Pension and postretirement liability adjustment, net of deferred taxes of ($2,943), ($4,241), ($7,281), and $4,119, respectively	7,608	9,888	15,203	(5,361)
Total comprehensive income	$ 75,957	$ 34,575	$ 163,224	$ 54,359