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Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($) | 12 Months Ended
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Oct. 31, 2015 | Oct. 31, 2014 | Oct. 31, 2013
Summary Of Significant Accounting Policies [Line Items] |  |  |
Cash and cash equivalent maturity period, months | 3 months |  |
Depreciation expenses | $ 71,100,000 | $ 63,100,000 | $ 56,700,000
Repair and maintenance costs | 32,300,000 | 28,700,000 | 26,300,000
Goodwill impairment loss | 0 | 0 | 0
Long-lived assets impairment loss | $ 0 | $ 0 | $ 0
Additional maintenance perpetual license period (in years) | 20 years |  |
Software product warranty period (in days) | 90 days |  |
Term Licenses |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
License fee percentage | 75.00% |  |
Maintenance fee percentage | 100.00% |  |
Perpetual licenses |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
License fee percentage | 75.00% |  |
Maintenance fee percentage | 100.00% |  |
Perpetual And Term Licenses |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
License fee percentage | 75.00% |  |
Maintenance fee percentage | 100.00% |  |
Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Hardware product warranty period (in months) | 6 months |  |
Intangible Assets | Minimum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Intangible assets amortization period | 1 year |  |
Intangible Assets | Maximum |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Intangible assets amortization period | 10 years |  |
Voluntary Retirement Program and Headcount Reduction Program |  |  |
Summary Of Significant Accounting Policies [Line Items] |  |  |
Restructuring charges | $ 15,100,000 |  |
Payroll and related benefits liabilities | $ 0 |  |

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