Represents the period over which performance goals of the entity are vested.

No definition available.

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- Definition

Represents the requisite service period for non-employee director after which fair value of options granted is fully expensed on the date of grant.

+ References

No definition available.

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
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- Definition

Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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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.

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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.

+ References

No definition available.

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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

Net number of share options (or share units) granted during the period.

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-Publisher FASB
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- Definition

Percentage of vesting of share-based compensation awards.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition

Period from grant date that an equity-based award expires, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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STOCK-BASED COMPENSATION PLANS - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 31, 2018	Oct. 31, 2017	Oct. 31, 2016
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock available for future grants (in shares)	5,023,831
Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	430,914
Compensation cost not yet recognized	$ 4.5
Period for recognition	1 year 10 months 27 days
Stock option awards \| Certain members of the Board Of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Term of award	10 years
Stock option awards \| Certain employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Term of award	10 years
Stock option awards \| Non-employee directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Requisite service period for non-employee director after which fair value of options granted is fully expensed on the date of grant	10 years
Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting period	3 years
Compensation cost not yet recognized	$ 3.3
Period for recognition	2 years 2 months 24 days
Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation cost not yet recognized	$ 4.6
Period for recognition	1 year 7 months 12 days
Performance goal period	3 years
Unrestricted common stock awards \| Certain members of the Board Of Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Granted (in shares)	8,388	11,412	12,320
Minimum \| Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage	200.00%
Maximum \| Performance share awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage	0.00%
Share-based Compensation Award, Tranche One \| Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage	33.33%
Share-based Compensation Award, Tranche One \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage	33.33%
Share-based Compensation Award, Tranche Two \| Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage	33.33%
Share-based Compensation Award, Tranche Two \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage	33.33%
Share-based Compensation Award, Tranche Three \| Stock option awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage	33.33%
Share-based Compensation Award, Tranche Three \| Restricted stock units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Award vesting rights percentage	33.33%