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Related Party Transactions (Tables)
 9 Months Ended
Apr. 30, 2015
Related Party Transactions [Abstract]  
Schedule of expenses incurred on related party transactions
  Three Months Ended
April 30,		  Nine Months Ended
April 30,		 
  2015  2014   2015      2014 
  (in thousands) 
Included in direct cost of revenues $—  $12  $—  $39 
Included in selling, general and administrative  —   105   464   698