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Income Taxes - Schedule of (Loss) Earnings from Continuing Operations (Details) - USD ($)
$ in Thousands
12 Months Ended
Jul. 31, 2016
Jul. 31, 2015
Jul. 31, 2014
Income Tax Disclosure [Abstract]      
United States $ 61,349 $ (582) $ (134,596)
Other Nations 47,996 25,577 81,487
Earnings (loss) from continuing operations before income taxes $ 109,345 $ 24,995 $ (53,109)