Employee Benefit Plans - Schedule of Amounts Recognized in Balance Sheet (Details) - USD ($) $ in Thousands	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2013
Compensation and Retirement Disclosure [Abstract]
Current liability	$ 659	$ 476
Non-current liability	3,476	7,580
Defined Benefit Plan, Benefit Obligation	$ 4,135	$ 8,056	$ 13,023