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Other Operating Expense, Net (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jul. 31, 2019 | Jul. 31, 2018 | Jul. 31, 2017
Other Operating (Losses) Gains, Net [Abstract] |  |  |
Corporate-gain (losses) related to Straight Path Communications Inc. | $ 326 | $ (1,655) | $ (10,436)
Corporate-gain (losses) related to other legal matters |  | (628) | 24
net2phone-indemnification claim and other, net | (267) | (115) |
Telecom & Payment Services-accrual for non-income related taxes related to a foreign subsidiary | (8,000) |  |
Telecom & Payment Services-gain on sale of calling card business in Asia | 215 |  |
Telecom & Payment Services-adjustment to gain on sale of member interest in Visa Europe Ltd. |  |  | (63)
TOTAL | $ (7,726) | $ (2,398) | $ (10,475)

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- Definition The net realized gain (loss) on investments sold during the period, not including gains (losses) on securities separately or otherwise categorized as trading, available-for-sale, or held-to-maturity, which, for cash flow reporting, is a component of proceeds from investing activities. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
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