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Business Segment Information (Tables) | 9 Months Ended
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Apr. 30, 2015
Business Segment Information [Abstract] |
Summary of Operating Results of Business Segments |
(in thousands) |  | Telecom Platform Services |  |  | Consumer Phone Services |  |  | All Other |  |  | Corporate |  |  | Total |
Three Months Ended April 30, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 379,139 |  |  | $ | 2,098 |  |  | $ | 2,693 |  |  | $ | — |  |  | $ | 383,930 |
Income (loss) from operations |  |  | 5,602 |  |  |  | 324 |  |  |  | 1,584 |  |  |  | (5,040 | ) |  |  | 2,470 |
Gain on sale of interest in Fabrix Systems Ltd. |  |  | — |  |  |  | — |  |  |  | 1,235 |  |  |  | — |  |  |  | 1,235 |
Other operating loss |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (1,552 | ) |  |  | (1,552 | )
Three Months Ended April 30, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 394,568 |  |  | $ | 2,625 |  |  | $ | 6,568 |  |  | $ | — |  |  | $ | 403,761 |
Income (loss) from operations |  |  | 12,378 |  |  |  | 517 |  |  |  | (443 | ) |  |  | (3,282 | ) |  |  | 9,170 |
Nine Months Ended April 30, 2015 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 1,171,897 |  |  | $ | 6,652 |  |  | $ | 12,432 |  |  | $ | — |  |  | $ | 1,190,981 |
Income (loss) from operations |  |  | 18,142 |  |  |  | 985 |  |  |  | 77,520 |  |  |  | (10,834 | ) |  |  | 85,813 |
Gain on sale of interest in Fabrix Systems Ltd. |  |  | — |  |  |  | — |  |  |  | 76,864 |  |  |  | — |  |  |  | 76,864 |
Other operating loss |  |  | — |  |  |  | — |  |  |  | — |  |  |  | (1,552 | ) |  |  | (1,552 | )
Nine Months Ended April 30, 2014 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  | $ | 1,205,490 |  |  | $ | 8,491 |  |  | $ | 16,874 |  |  | $ | — |  |  | $ | 1,230,855 |
Income (loss) from operations |  |  | 36,676 |  |  |  | 1,358 |  |  |  | (2,242 | ) |  |  | (11,765 | ) |  |  | 24,027 |
Other operating gains (loss), net |  |  | 650 |  |  |  | — |  |  |  | 638 |  |  |  | (79 | ) |  |  | 1,209 |

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8721-108599 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8813-108599 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8906-108599 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=51669610&loc=d3e8736-108599 + Details
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