CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 2,987	$ (45,968)	$ (154,535)
Foreign currency translation adjustments:
Net (loss) gain recognized in other comprehensive (loss) income	(85,622)	4,543	(2,312)
Reclassification adjustment for (gains) losses included in net earnings (loss)	(34,697)	3,004	0
Total foreign currency translation adjustments	(120,319)	7,547	(2,312)
Net investment hedge translation adjustments	21,477	(4,243)	(6,537)
Long-term intercompany loan translation adjustments:
Net gain recognized in other comprehensive (loss) income	546	211	3,108
Reclassification adjustment for (gains) losses included in net earnings (loss)	(393)	865	0
Total long-term intercompany loan translation adjustments	153	1,076	3,108
Cash flow hedges:
Net gain (loss) recognized in other comprehensive (loss) income	1,643	8	(652)
Reclassification adjustment for gains included in net earnings (loss)	(1,325)	(147)	(578)
Total cash flow hedges	318	(139)	(1,230)
Pension and other post-retirement benefits:
Net gain recognized in other comprehensive (loss) income	1,057	5,211	1,617
Actuarial gain amortization	(741)	(240)	(25)
Prior service credit amortization	(1,170)	(203)	(203)
Reclassification adjustment for (gains) losses included in net earnings (loss)	(1,741)	131	0
Total pension and other post-retirement benefits	(2,595)	4,899	1,389
Other comprehensive (loss) income, before tax	(100,966)	9,140	(5,582)
Income tax (expense) benefit related to items of other comprehensive (loss) income	(8,224)	(1,047)	2,234
Other comprehensive (loss) income, net of tax	(109,190)	8,093	(3,348)
Comprehensive loss	$ (106,203)	$ (37,875)	$ (157,883)