Accumulated Other Comprehensive Loss (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2014		Jan. 31, 2014
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax	$ (21,225)		$ (37,473)
Other comprehensive (loss) income before reclassifications and tax	(13,387)		1,248
Tax benefit (expense)	(1,955)		(2,779)
Other comprehensive (loss) income before reclassifications, net of tax	(15,342)		(1,531)
Balance at January 31, 2014, net of tax	(35,375)		(35,375)
Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax	1,884		5,183
Tax benefit (expense)	(692)		(1,554)
Reclassifications, net of tax	1,192		3,629
Other comprehensive (loss) income, net of tax	(14,150)		2,098
Balance at January 31, 2014, net of tax	(35,375)		(35,375)
Foreign Currency Translation Adjustment [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax	63,605	[1]	50,411	[1]
Other comprehensive (loss) income before reclassifications and tax	(18,302)	[1]	(5,935)	[1]
Other comprehensive (loss) income before reclassifications, net of tax	(18,302)	[1]	(5,935)	[1]
Foreign Currency Translation Adjustment [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax			827	[1]
Reclassifications, net of tax			827	[1]
Other comprehensive (loss) income, net of tax	(18,302)	[1]	(5,108)	[1]
Balance at January 31, 2014, net of tax	45,303	[1]	45,303	[1]
Pension Benefits [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax	(84,486)		(87,712)
Other comprehensive (loss) income before reclassifications and tax	4,648		7,122
Tax benefit (expense)	(1,862)		(2,758)
Other comprehensive (loss) income before reclassifications, net of tax	2,786		4,364
Pension Benefits [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax	1,982		4,520
Tax benefit (expense)	(724)		(1,614)
Reclassifications, net of tax	1,258	[2]	2,906	[2]
Other comprehensive (loss) income, net of tax	4,044		7,270
Balance at January 31, 2014, net of tax	(80,442)		(80,442)
Derivative Financial Instruments [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Beginning Balance, net of tax	(344)		(172)
Other comprehensive (loss) income before reclassifications and tax	267		61
Tax benefit (expense)	(93)		(21)
Other comprehensive (loss) income before reclassifications, net of tax	174		40
Derivative Financial Instruments [Member] | Reclassification Out Of Accumulated Other Comprehensive Income [Member]
Reclassification Adjustment out of Accumulated Other Comprehensive Income [Line Items]
Reclassifications, before tax	(98)		(164)
Tax benefit (expense)	32		60
Reclassifications, net of tax	(66)		(104)
Other comprehensive (loss) income, net of tax	108	[3]	(64)	[3]
Balance at January 31, 2014, net of tax	$ (236)		$ (236)

[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] Primarily includes net amortization of prior service costs and actuarial losses included in net periodic benefit cost (see Note K) that were reclassified from accumulated other comprehensive loss to operating expenses or cost of sales.

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