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Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Apr. 30, 2020
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Schedule of accumulated balances for each classification of other comprehensive loss |
|  | Unrealized Gain (Loss) on Available-for- Sale Securities |  |  | Foreign Currency Translation |  |  | Accumulated Other Comprehensive Loss |
|  | (in thousands) |
Balance, July 31, 2019 |  | $ | — |  |  | $ | (4,858 | ) |  | $ | (4,858 | )
Other comprehensive income (loss) attributable to IDT Corporation |  |  | 84 |  |  |  | (2,364 | ) |  |  | (2,280 | )
Balance, April 30, 2020 |  | $ | 84 |  |  | $ | (7,222 | ) |  | $ | (7,138 | )

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=118930883&loc=SL7669686-108580 + Details
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