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Business Segment Information (Details) - USD ($) $ in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2017 | [1] | Apr. 29, 2017 | [2] | Jan. 31, 2017 | Oct. 31, 2016 | [3] | Jul. 31, 2016 | Apr. 30, 2016 | Jan. 31, 2016 | Oct. 31, 2015 | Jul. 31, 2015 | Jul. 31, 2017 | Jul. 31, 2016 | Jul. 31, 2015
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues | $ 394,987 | $ 370,035 | $ 367,556 | $ 369,151 | $ 368,075 | [4] | $ 355,154 | [5] | $ 382,454 | $ 390,578 |  | $ 1,501,729 | $ 1,496,261 | $ 1,596,777
Income (loss) from operations | $ 3,737 | $ (6,502) | $ 3,128 | $ 5,186 | 6,225 | [4] | 5,676 | [5] | $ 6,377 | $ 7,925 |  | 5,549 | 26,203 | 93,050
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  | 21,704 | 20,535 | 18,418
Severance |  |  |  |  | 6,300 |  |  |  |  |  | $ 200 |  | 6,510 | 8,363
Gain on sale of member interest in Visa Europe Ltd. |  |  |  |  | $ 7,500 |  |  |  |  |  |  | (63) | 7,476 |
Gain on sale of interest in Fabrix Systems, Ltd. |  |  |  |  |  |  | $ 1,100 |  |  |  |  |  | 1,086 | 76,864
Adjustment to gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  | (63) |  |
Other (see Note 12) |  |  |  |  |  |  |  |  |  |  |  | (10,412) | (326) | (1,552)
UCaaS [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 29,450 | 26,353 | 29,434
Consumer Phone Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 5,482 | 6,874 | 8,629
Operating Segments [Member] | Telecom Platform Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 1,464,059 | 1,451,553 | 1,543,310
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  |  | 24,427 | 32,813 | 26,418
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  | 16,134 | 15,787 | 13,764
Severance |  |  |  |  |  |  |  |  |  |  |  |  | 6,200 | 7,696
Gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  |  | 7,476 |
Gain on sale of interest in Fabrix Systems, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustment to gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  | (63) |  |
Other (see Note 12) |  |  |  |  |  |  |  |  |  |  |  |  | (326) |
Operating Segments [Member] | UCaaS [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 29,450 | 26,353 | 29,434
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  |  | (1,865) | (1,599) | 533
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  | 3,875 | 2,760 | 2,405
Severance |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of interest in Fabrix Systems, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustment to gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other (see Note 12) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Segments [Member] | Consumer Phone Services [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 5,482 | 6,874 | 8,629
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  |  | 1,069 | 1,218 | 1,259
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  |  |
Severance |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of interest in Fabrix Systems, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustment to gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other (see Note 12) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Segments [Member] | All Other [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  | 2,738 | 11,481 | 15,404
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  |  | 342 | 4,165 | 77,969
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  | 1,695 | 1,987 | 2,243
Severance |  |  |  |  |  |  |  |  |  |  |  |  |  | 35
Gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of interest in Fabrix Systems, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  | 1,086 | 76,864
Adjustment to gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other (see Note 12) |  |  |  |  |  |  |  |  |  |  |  |  |  |
Operating Segments [Member] | Corporate [Member] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Revenues |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income (loss) from operations |  |  |  |  |  |  |  |  |  |  |  | (18,424) | (10,394) | (13,129)
Depreciation and amortization |  |  |  |  |  |  |  |  |  |  |  |  | 1 | 6
Severance |  |  |  |  |  |  |  |  |  |  |  |  | 310 | 632
Gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Gain on sale of interest in Fabrix Systems, Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Adjustment to gain on sale of member interest in Visa Europe Ltd. |  |  |  |  |  |  |  |  |  |  |  |  |  |
Other (see Note 12) |  |  |  |  |  |  |  |  |  |  |  | $ (10,412) |  | $ (1,552)
[1] | Included in net loss was income tax expense of $11.1 million from an increase in the valuation allowance on deferred tax assets.
[2] | Included in loss from operations was expense of $10.1 million related to a legal settlement and mutual release, including legal fees incurred in the quarter.
[3] | Included in net income was a benefit from income taxes of $16.6 million from the full recognition of certain deferred tax assets.
[4] | Included in income from operations was severance expense of $6.3 million and gain on sale of member interest in Visa Europe Ltd. of $7.5 million.
[5] | Included in income from operations was gain on sale of interest in Fabrix Systems Ltd. of $1.1 million.

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