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Summary of Significant Accounting Policies - Schedule of Topic 606 Impact Balance Sheet (Details) - USD ($) $ in Thousands | Oct. 31, 2019 | Oct. 31, 2018
--- | --- | ---
Balance Sheet Related Disclosures [Abstract] |  |
Accounts receivable, net | $ 553,895 | $ 554,217
Prepaid and other current assets | 290,052 | 67,533
Deferred income taxes | 390,129 | 404,166
Other long-term assets | 380,526 | 246,736
Accounts payable and accrued liabilities | 506,459 | 578,326
Deferred revenue | 1,212,476 | 1,152,862
Long-term deferred revenue | 90,102 | 116,859
Other long-term liabilities | 323,725 | 265,560
Retained earnings | 3,164,144 | 2,543,688
Adjusted balance under ASC 605 |  |
Balance Sheet Related Disclosures [Abstract] |  |
Accounts receivable, net | 622,904 |
Prepaid and other current assets | 79,495 |
Deferred income taxes | 473,320 |
Other long-term assets | 294,083 |
Accounts payable and accrued liabilities | 497,955 |
Deferred revenue | 1,384,117 |
Long-term deferred revenue | 144,583 |
Other long-term liabilities | 307,054 |
Retained earnings | 2,818,397 |
Accounting Standards Update 2014-09 | Adjustments |  |
Balance Sheet Related Disclosures [Abstract] |  |
Accounts receivable, net | 69,009 |
Prepaid and other current assets | (210,557) |
Deferred income taxes | 83,191 |
Other long-term assets | (86,443) |
Accounts payable and accrued liabilities | (8,504) |
Deferred revenue | 171,641 |
Long-term deferred revenue | 54,481 |
Other long-term liabilities | (16,671) |
Retained earnings | $ (345,747) | $ 265,100

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