Fair Value Measurements (Tables)

6 Months Ended

Jan. 31, 2015

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, 2015
Trading securities	$	14,920	$	—	$	14,920	Other assets
Foreign exchange contracts	—		1,871		1,871		Prepaid expenses and other current assets
Total Assets	$	14,920	$	1,871	$	16,791
Foreign exchange contracts	$	—	$	438	$	438	Other current liabilities
Total Liabilities	$	—	$	438	$	438
July 31, 2014
Trading securities	$	15,962	$	—	$	15,962	Other assets
Foreign exchange contracts	—		166		166		Prepaid expenses and other current assets
Total Assets	$	15,962	$	166	$	16,128
Foreign exchange contracts	$	—	$	389	$	389	Other current liabilities
Total Liabilities	$	—	$	389	$	389