Other Comprehensive Income Other Comprehensive Income, Text (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013	Jul. 31, 2013
Accumulated Other Comprehensive Income (Loss) [Line Items]
Derivatives used in Net Investment Hedge, Tax Benefit (Expense)	$ (576)	$ 1,789	$ 738	$ 3,742
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax	178		178		99
Accumulated Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net of Tax	(1,619)		(1,619)		(1,853)
Accumulated Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Net of Tax	52,630		52,630		54,111
Accumulated other comprehensive income	54,427		54,427		56,063
Other Comprehensive Income Before Tax and Reclassification Adjustments			(1,345)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax			136
Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Gain (Loss), before Reclassification and Tax			(1,481)
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax			291
Other comprehensive (loss) income, net of tax	(171)	1,560	2,471	3,815
Adjustment for Long-term Intercompany Transactions, Tax Benefit (Expense)	440	(647)	1,843	(592)
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, Tax	(78)	164	(60)	598
Other Comprehensive Income Tax Other Adjustments	43	254	(50)	67
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax			57
Accumulated Defined Benefit Plans Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax			$ 234