Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands		12 Months Ended
		Jul. 31, 2015		Jul. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax		$ (45,810)		$ (37,473)
Other comprehensive (loss) income before reclassifications and tax		(126,188)		(18,656)
Tax benefit (expense)		2,646		4,246
Other comprehensive (loss) income before reclassifications, net of tax		(123,542)		(14,410)
Ending Balance, net of tax		(161,990)		(45,810)
Accumulated Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax	[1]	48,289		50,411
Other comprehensive (loss) income before reclassifications and tax	[1]	(119,094)		(2,949)
Other comprehensive (loss) income before reclassifications, net of tax	[1]	(119,094)		(2,949)
Ending Balance, net of tax	[1]			48,289
Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax		(101)		(172)
Other comprehensive (loss) income before reclassifications and tax		(1,906)		413
Tax benefit (expense)		667		(145)
Other comprehensive (loss) income before reclassifications, net of tax		(1,239)		268
Ending Balance, net of tax				(101)
Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax		(93,998)		(87,712)
Other comprehensive (loss) income before reclassifications and tax		(5,188)		(16,120)
Tax benefit (expense)		1,979		4,391
Other comprehensive (loss) income before reclassifications, net of tax		(3,209)		(11,729)
Ending Balance, net of tax				(93,998)
Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax		(45,810)
Reclassifications, before tax	[2]	9,784		9,068
Tax benefit (expense)		(2,422)		(2,995)
Reclassifications, net of tax		7,362		6,073
Other comprehensive (loss) income, net of tax		(116,180)		(8,337)
Ending Balance, net of tax		(161,990)		(45,810)
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Accumulated Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax	[1]	48,289
Reclassifications, before tax	[1]			827
Reclassifications, net of tax	[1]			827
Other comprehensive (loss) income, net of tax	[1]	(119,094)		(2,122)
Ending Balance, net of tax	[1]	(70,805)		48,289
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Accumulated Net Gain Loss From Designated Or Qualifying Cash Flow Hedges [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax		(101)
Reclassifications, before tax		1,037		(273)
Tax benefit (expense)		(289)		76
Reclassifications, net of tax	[3]	748		(197)
Other comprehensive (loss) income, net of tax		(491)	[3]	71
Ending Balance, net of tax		(592)		(101)
Reclassification Out Of Accumulated Other Comprehensive Income [Member] | Accumulated Defined Benefit Plans Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax		(93,998)
Reclassifications, before tax		8,747		8,514
Tax benefit (expense)		(2,133)		(3,071)
Reclassifications, net of tax	[4]	6,614		5,443
Other comprehensive (loss) income, net of tax		3,405		(6,286)
Ending Balance, net of tax		$ (90,593)		$ (93,998)

[1] Taxes are not provided on cumulative translation adjustments as substantially all translation adjustments relate to earnings that are intended to be indefinitely reinvested outside the U.S. Amounts were reclassified from accumulated other comprehensive loss to other income, net.

[2] Reclassification adjustments out of accumulated other comprehensive income for the twelve months ended July 31, 2015, and 2014 were not material.

[3] Relates to foreign currency cash flow hedges that were reclassified from accumulated other comprehensive loss to other income, net (see Note E).

[4] Primarily includes net amortization of prior service costs of $0.4 million as of July 31, 2015 and July 31, 2014 and actuarial losses of $11.0 million and $7.4 million as of July 31, 2015 and July 31, 2014 included in net periodic benefit cost that were reclassified from accumulated other comprehensive loss to operating expenses or cost of sales. Refer to Note F for additional information and balances of accumulated other comprehensive income before tax.