CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2015	Oct. 31, 2014
Statement of Comprehensive Income [Abstract]
Net earnings	$ 18,703	$ 13,584
Foreign currency translation adjustments:
Net loss recognized in other comprehensive loss	(6,483)	(24,303)
Reclassification adjustment for gains included in net earnings	0	(34,697)
Total foreign currency translation adjustments	(6,483)	(59,000)
Net investment hedge translation adjustments	871	8,151
Long-term intercompany loan translation adjustments:
Long-term intercompany loan translation adjustments:	(1,424)	(1,350)
Reclassification from OCI Intercompany Loans	0	(393)
Total intercompany loan translation adjustments	(1,424)	(1,743)
Cash flow hedges:
Net (loss) gain recognized in other comprehensive loss	(260)	601
Reclassification adjustment for (gains) losses included in net earnings	(457)	21
Total cash flow hedges	(717)	622
Pension and other post-retirement benefits:
Actuarial gain amortization	(161)	(214)
Prior service credit amortization	(622)	(81)
Total pension and post-retirement benefits	(783)	(295)
Other comprehensive income (loss), before tax	(8,536)	(52,265)
Income tax benefit (expense) related to items of other comprehensive loss	144	(3,326)
Other comprehensive loss, net of tax	(8,392)	(55,591)
Comprehensive income (loss)	$ 10,311	$ (42,007)