CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Statement of Comprehensive Income [Abstract]
Net earnings	$ 24,088	$ 4,233	$ 64,441	$ 22,736
Other comprehensive income (loss):
Foreign currency translation adjustments	12,872	(8,752)	12,602	19,318
Net investment hedge translation adjustments	(2,864)	4,461	(7,229)	(5,270)
Long-term intercompany loan translation adjustments	(78)	(79)	545	1,510
Cash flow hedges:
Net (loss) gain recognized in other comprehensive income	(220)	330	11	(668)
Reclassification adjustment for (gains) losses included in net earnings	(43)	9	(135)	(548)
Total cash flow hedges	(263)	339	(124)	(1,216)
Pension and other post-retirement benefits:
Loss recognized in other comprehensive income	(41)	0	(41)	0
Actuarial gain amortization	(66)	(12)	(199)	(35)
Prior service credit amortization	(51)	(50)	(152)	(152)
Total pension and post-retirement benefits	(158)	(62)	(392)	(187)
Other comprehensive income (loss), before tax	9,509	(4,093)	5,402	14,155
Income tax (expense) benefit related to items of other comprehensive income	(249)	(943)	2,222	2,873
Other comprehensive income (loss), net of tax	9,260	(5,036)	7,624	17,028
Comprehensive income (loss)	$ 33,348	$ (803)	$ 72,065	$ 39,764