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Revenue Recognition - Schedule of Cumulative Effect and Impacts of Topic 606 on Consolidated Balance Sheets (Details) - USD ($) $ in Thousands | Oct. 31, 2019 | Nov. 01, 2018 | Oct. 31, 2018
--- | --- | --- | ---
ASSETS |  |  |
Unbilled receivables | $ 7,684 |  | $ 13,759
Other assets | 9,489 |  | 13,505
LIABILITIES |  |  |
Accrued liabilities | 11,452 |  | 7,632
Deferred revenue, current portion | 11,471 |  | 11,347
Long-term deferred revenue | 28,705 |  | 16,793
EQUITY |  |  |
Accumulated deficit | (1,075,089) |  | $ (990,867)
Topic 606 [Member] |  |  |
ASSETS |  |  |
Unbilled receivables |  | $ 14,230 |
Other assets |  | 13,373 |
LIABILITIES |  |  |
Accrued liabilities |  | 8,627 |
Deferred revenue, current portion |  | 11,107 |
Long-term deferred revenue |  | 23,031 |
EQUITY |  |  |
Accumulated deficit |  | (997,521) |
Adjustments Due to Topic 606 [Member] | Topic 606 [Member] |  |  |
ASSETS |  |  |
Unbilled receivables | 97 | 471 |
Other assets | (1,024) | (132) |
LIABILITIES |  |  |
Accrued liabilities | (1,097) | 995 |
Deferred revenue, current portion | 488 | (240) |
Long-term deferred revenue | (9,579) | 6,238 |
EQUITY |  |  |
Accumulated deficit | 9,261 | $ (6,654) |
Balances Without Adoption of ASC 606 [Member] | Topic 606 [Member] |  |  |
ASSETS |  |  |
Unbilled receivables | 7,781 |  |
Other assets | 8,465 |  |
LIABILITIES |  |  |
Accrued liabilities | 10,355 |  |
Deferred revenue, current portion | 11,959 |  |
Long-term deferred revenue | 19,126 |  |
EQUITY |  |  |
Accumulated deficit | $ (1,065,828) |  |

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