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No definition available.

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- Definition

Share based compensation arrangement for options contractual term.

+ References

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Share Reserve Ratio

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Aggregate number of common shares reserved for future issuance.

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- Definition

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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- Definition

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable.

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- Definition

The addition or reduction in the number of reserved shares that could potentially be issued under the option plan attributable to reasons other than grants, exercises, forfeitures, and expirations during the reporting period.

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- Definition

Number of options outstanding, including both vested and non-vested options.

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Employee Benefit Plans (Equity Compensation Plans) - Additional Information (Detail)		12 Months Ended
	Apr. 12, 2023 shares	Oct. 31, 2023 shares	Oct. 31, 2022 shares	Oct. 31, 2021 shares	Oct. 31, 2020 shares	Apr. 06, 2017 shares
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate restricted stock units outstanding (in shares)		4,517,000	4,638,000	4,187,000	4,130,000
Restricted Stock Units (RSUs), Market-based \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, (in years)		2 years
Restricted Stock Units (RSUs), Market-based \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, (in years)		3 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate restricted stock units outstanding (in shares)		5,000	5,000	5,000	9,000
2006 Employee Equity Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, (in years)		4 years
Share reserve ratio		1.70
Share based compensation arrangement for options contractual term (in years)		7 years
Additional reserved for future issuance under the 2006 Employee Plan (in shares)	3,300,000
Shares available for future grant (in shares)		13,286,000	13,111,000	13,751,000	12,129,000
2006 Employee Equity Incentive Plan \| Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate restricted stock units outstanding (in shares)		4,500,000
2006 Employee Equity Incentive Plan \| Restricted Stock Units (RSUs) \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, (in years)		3 years
2006 Employee Equity Incentive Plan \| Restricted Stock Units (RSUs) \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, (in years)		4 years
2006 Employee Equity Incentive Plan \| Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate stock options outstanding (in shares)		1,500,000
2005 Non Employee Directors Plan \| Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate stock options outstanding (in shares)		7,500
2005 Non Employee Directors Plan \| Stock Option \| Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, (in years)		3 years
2005 Non Employee Directors Plan \| Stock Option \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, (in years)		4 years
2017 Directors Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Reserved for future issuance (in shares)		368,407				450,000
2017 Directors Plan \| Stock Option
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate stock options outstanding (in shares)		12,792
2017 Directors Plan \| Stock Option \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period, (in years)		3 years
2017 Directors Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Aggregate restricted stock units outstanding (in shares)		4,806
Other Assumed Stock Plans
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Assumed shares remaining outstanding (in shares)		31,000