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Description of Business and Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jan. 31, 2019
Accounting Policies [Abstract] |
Contract with Customer, Asset and Liability [Table Text Block] | The change in the carrying amount of contract assets was as follows (in thousands):
Balance as of July 31, 2018 |  | $ | 11,840 |
Costs amortized during the period |  | (3,322 | )
Effect of foreign currency exchange rates |  | (46 | )
Balance as of January 31, 2019 |  | $ | 8,472 |
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, 2017 |  | $ | (100,676 | )
Loss on foreign currency translation |  | (7,252 | )
Cumulative loss on foreign currency translation as of July 31, 2018 |  | $ | (107,928 | )
Gain on foreign currency translation |  | 705 |
Cumulative loss on foreign currency translation as of January 31, 2019 |  | $ | (107,223 | )

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- Definition Tabular disclosure of foreign currency exchange rate fluctuations. + References No definition available. + Details
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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
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