XML 30 R46.htm IDEA: XBRL DOCUMENT v2.4.0.6
Summary of Significant Accounting Policies (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jul. 31, 2012
Jul. 31, 2011
Jul. 31, 2010
Cumulative Translation Adjustment Summary [Roll Forward]      
Cumulative loss on foreign currency translation, Begining balance $ (23,225) $ (32,741)  
Gain (Loss) on foreign currency translation (11,708) 9,516 (5,659)
Cumulative loss on foreign currency translation, Ending balance $ (34,933) $ (23,225) $ (32,741)