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Other (Expense) Income, Net (Tables)
3 Months Ended
Oct. 31, 2013
Other Operating Gains (Loss) and Other (Expense) Income, Net [Abstract]  
Schedule of Other (Expense) Income, Net
 
Three Months Ended
October 31,
 
   
2013
   
2012
 
   
(in thousands)
 
Foreign currency transaction (losses) gains
  $ (1,205 )   $ 564  
Gain on investments
    736       292  
Other
    (80 )     29  
Total other (expense) income, net
  $ (549 )   $ 885