CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Statement of Comprehensive Income [Abstract]
Net earnings	$ 13,584	$ 23,928
Foreign currency translation adjustments: [Abstract]
Net (loss) gain recognized in other comprehensive income	(24,303)	16,535
Reclassification adjustment for gains included in net earnings	(34,697)	0
Total foreign currency translation adjustments	(59,000)	16,535
Net investment hedge translation adjustments	8,151	(4,713)
Long-term intercompany loan translation adjustments: [Abstract]
Net loss recognized in other comprehensive income	(1,350)	(173)
Reclassification adjustment for gains included in net earnings	(393)	0
Total intercompany loan translation adjustments	(1,743)	(173)
Cash flow hedges:
Net gain (loss) recognized in other comprehensive income	601	(15)
Reclassification adjustment for losses (gains) included in net earnings	21	(90)
Total cash flow hedges	622	(105)
Pension and other post-retirement benefits:
Actuarial gain amortization	(214)	(66)
Prior service credit amortization	(81)	(51)
Total pension and post-retirement benefits	(295)	(117)
Other comprehensive (loss) income, before tax	(52,265)	11,600
Income tax (expense) benefit related to items of other comprehensive income	(3,326)	2,642
Other comprehensive (loss) income, net of tax	(55,591)	14,242
Comprehensive (loss) income	$ (42,007)	$ 38,170