XML 22 R34.htm IDEA: XBRL DOCUMENT

Restructuring - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2013	Oct. 31, 2012
Restructuring And Other [Line Items]
Restructuring expense	$ 0	$ 231
Employee Severance
Restructuring And Other [Line Items]
Restructuring expense		$ 200

- Definition

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

+ References+ Details