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Description of Business and Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jan. 31, 2018
Accounting Policies [Abstract] |
Schedule of foreign currency translation | The cumulative effects of foreign currency exchange rate fluctuations were as follows (in thousands):
Cumulative loss on foreign currency translation as of July 31, 2016 |  | $ | (109,194 | )
Gain on foreign currency translation |  | 8,518 |
Cumulative loss on foreign currency translation as of July 31, 2017 |  | $ | (100,676 | )
Gain on foreign currency translation |  | 21,763 |
Cumulative loss on foreign currency translation as of January 31, 2018 |  | $ | (78,913 | )

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- Definition Tabular disclosure of foreign currency exchange rate fluctuations. + References No definition available. + Details
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