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Employee Benefit Plans (Equity Compensation Plans) - Additional Information (Detail) - USD ($) $ in Millions |  | 12 Months Ended |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Mar. 29, 2016 | Oct. 31, 2016 | Oct. 31, 2015 | Oct. 31, 2014 | Oct. 31, 2013 | May 23, 2005
Restricted Stock Units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Aggregate restricted stock units outstanding |  | 4,035,000 | 3,928,000 | 3,947,000 | 3,983,000 |
Restricted Stock Units | Minimum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period, (in years) |  | 3 years |  |  |  |
Restricted Stock Units | Maximum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period, (in years) |  | 4 years |  |  |  |
Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Aggregate restricted stock units outstanding |  | 43,000 | 45,000 |  |  |
Stock Option |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Shares available for future grant |  | 11,244,000 | 11,883,000 | 12,155,000 | 8,472,000 |
2006 Employee Equity Incentive Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Share based compensation arrangement for options contractual term (in years) |  | 7 years |  |  |  |
Vesting period, (in years) |  | 4 years |  |  |  |
Additional reserved for future issuance under the 2006 Employee Plan | 3,800,000 |  |  |  |  |
Shares available for future grant |  | 11,200,000 |  |  |  |
2006 Employee Equity Incentive Plan | Restricted Stock Units |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Aggregate restricted stock units outstanding |  | 4,000,000 |  |  |  |
2006 Employee Equity Incentive Plan | Stock Option |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Aggregate stock options outstanding |  | 6,300,000 |  |  |  |
2005 Directors Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Reserved for future issuance |  | 241,690 |  |  |  | 800,000
Restricted stock awards issued |  | 363,782 |  |  |  |
Aggregate grant date fair value of restricted stock awards |  | $ 11.5 |  |  |  |
2005 Directors Plan | Restricted Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period, (in years) |  | 3 years |  |  |  |
Aggregate restricted stock units outstanding |  | 42,588 |  |  |  |
2005 Directors Plan | Stock Option |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Aggregate stock options outstanding |  | 76,369 |  |  |  |
Aggregate stock options granted under 2005 director plan |  | 157,871 |  |  |  |
Fair value of option shares granted |  | $ 4.7 |  |  |  |
2005 Directors Plan | Stock Option | Minimum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period, (in years) |  | 3 years |  |  |  |
2005 Directors Plan | Stock Option | Maximum [Member] |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Vesting period, (in years) |  | 4 years |  |  |  |
Other Assumed Stock Plans |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Assumed shares remaining outstanding |  | 400,000 |  |  |  |

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- Definition Period which an employee's right to exercise an award is no longer contingent on satisfaction of either a service condition, market condition or a performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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