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Income Taxes - Schedule of (Loss) Earnings from Continuing Operations (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jul. 31, 2014
Jul. 31, 2013
Jul. 31, 2012
Income Tax Disclosure [Abstract]      
United States $ (134,596) $ (144,941) $ 44,713
Other Nations 81,487 49,267 95,942
(Loss) earnings from continuing operations before income taxes $ (53,109) $ (95,674) $ 140,655