Financial Instruments (Tables)

6 Months Ended

Jan. 31, 2012

Financial Instruments [Abstract]

Impact On Accumulated Other Comprehensive Income (Loss) And Earnings From Foreign Exchange Contracts That Qualified As Cash Flow Hedges

	January 31,
	2012			2011
Net carrying amount at beginning of year	$	241		$	(660	)
Cash flow hedges deferred in other comprehensive income		1,046			(1,078	)
Cash flow hedges reclassified to income (effective portion)		(903	)		1,312
Change in deferred taxes		314			(71	)
Net carrying amount at January 31	$	698		$	(497	)