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Other Operating (Losses) Gains, Net (Tables)
 12 Months Ended
Jul. 31, 2015
Other (Expense) Income, Net [Abstract]  
Schedule of Other Operating Gains Net

          
Year ended July 31
(in thousands)		 2015  2014  2013 
Telecom Platform Services—gains related to legal matters, net $—  $650  $9,251 
Corporate—losses related to legal matters  (1,552)  (79)  — 
Corporate—other  —   (374)  — 
All Other—gain on insurance claim (a)  —   571   — 
All Other—other  —   67   — 
TOTAL $(1,552) $835  $9,251