Fair Value Measurements (Tables)

6 Months Ended

Jan. 31, 2013

Text Block [Abstract]

Financial Assets and Liabilities Accounted for at Fair Value on a Recurring Basis

	Inputs Considered As
	Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Fair Values		Balance Sheet Classifications
January 31, 2013
Trading securities	$	13,864	$	—	$	13,864	Other assets
Foreign exchange contracts	—		817		817		Prepaid expenses and other current assets
Total Assets	$	13,864	$	817	$	14,681
Foreign exchange contracts	$	—	$	584	$	584	Other current liabilities
Foreign currency denominated debt	—		108,064		108,064		Long term obligations, less current maturities
Total Liabilities	$	—	$	108,648	$	108,648
July 31, 2012
Trading securities	$	12,676	$	—	$	12,676	Other assets
Foreign exchange contracts	—		1,234		1,234		Prepaid expenses and other current assets
Total Assets	$	12,676	$	1,234	$	13,910
Foreign exchange contracts	$	—	$	281	$	281	Other current liabilities
Foreign currency denominated debt	—		99,081		99,081		Long term obligations, less current maturities
Total Liabilities	$	—	$	99,362	$	99,362