Share Based Compensation, Number Of Plans

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- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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- Definition

Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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- Definition

The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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- Definition

The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

+ References

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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 number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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- Definition

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

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- Definition

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

+ References

No definition available.

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- Definition

Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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- Definition

Number of share options (or share units) exercised during the current period.

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Stock-Based Compensation - Additional Information (Details) $ / shares in Units, $ in Millions	12 Months Ended
	Oct. 31, 2019 USD ($) compensation_plan $ / shares shares	Oct. 31, 2018 USD ($) $ / shares shares	Oct. 31, 2017 USD ($) shares	Oct. 31, 2014 shares	May 12, 2017 shares	May 12, 2016 shares	May 12, 2015 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation, number of plans \| compensation_plan	2
Stock options granted (shares)	0	0	0
Stock options exercised (shares)	0	0	0
Number of shares forfeited	0	0	0
Long-term incentive plan, requisite service period	3 years
Share based compensation expense \| $	$ 12.7	$ 6.5	$ 2.9
Long Term Incentive Plan Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of restricted stock (shares)	291,520
Weighted average grant date fair value (usd per share) \| $ / shares	$ 39.83
Share based compensation expense \| $	$ 11.6	$ 5.3	1.7
2005 Outside Directors Equity Award Plan Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of restricted stock (shares)	25,144	20,529
Weighted average grant date fair value (usd per share) \| $ / shares	$ 42.95	$ 59.18
Share based compensation expense \| $	$ 1.1	$ 1.2	$ 1.1
Class A Common Stock 2001 Plan \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation expense \| $	$ 0.1	$ 0.1
Grants in the period (shares)	9,000			15,000
Vesting installments (shares)					5,000	5,000	5,000
Share-based Payment Arrangement, Tranche One \| Class A Common Stock 2001 Plan \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting installments (shares)	3,000
Share-based Payment Arrangement, Tranche Two \| Class A Common Stock 2001 Plan \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting installments (shares)	3,000
Share-based Payment Arrangement, Tranche Three \| Class A Common Stock 2001 Plan \| Officer
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting installments (shares)	3,000