Share based compensation arrangement by share based payment award number of non employee directors.

No definition available.

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- Definition

Represents the number of officers.

+ References

No definition available.

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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) per non-employee.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 1
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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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-Publisher FASB
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- Definition

The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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-Publisher FASB
-Name Accounting Standards Codification
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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 718
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-Paragraph 2
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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

The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

+ 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

Number of shares authorized for issuance under share-based payment arrangement.

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-Publisher FASB
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- Definition

Percentage of vesting of award under share-based payment arrangement.

+ References

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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 - Narrative (Details) $ / shares in Units, $ in Thousands								1 Months Ended			12 Months Ended
	Aug. 10, 2020 $ / shares shares	Jun. 17, 2020 $ / shares shares	May 11, 2020 $ / shares shares	Apr. 22, 2020 item $ / shares shares	Dec. 18, 2019 $ / shares shares	Dec. 14, 2018 $ / shares shares	Dec. 18, 2017 $ / shares shares	Jan. 31, 2020 director $ / shares shares	Jan. 31, 2019 director $ / shares shares	Jan. 31, 2018 director $ / shares shares	Dec. 31, 2020 USD ($) shares	Oct. 31, 2020 USD ($) item $ / shares shares	Oct. 31, 2019 USD ($)	Oct. 31, 2018 USD ($)	Apr. 30, 2011 shares
Share-based Compensation
Number of officers \| item												1
Stock-based compensation expense \| $												$ 4,500	$ 3,600	$ 4,600
Restricted Stock [Member]
Share-based Compensation
Stock-based compensation expense \| $												4,500	3,600
Restricted Stock [Member] \| Chief Operating Officer [Member]
Share-based Compensation
Restricted shares granted	4,568
Restricted stock closing price awarded (in dollars per share) \| $ / shares	$ 65.67
Stock-based compensation expense \| $											$ 100
Annual incremental vesting percentage	33.00%
Restricted Stock [Member] \| Chief Financial Officer [Member]
Share-based Compensation
Restricted shares granted			5,418
Restricted stock closing price awarded (in dollars per share) \| $ / shares			$ 55.37
Stock-based compensation expense \| $											100
Annual incremental vesting percentage			33.00%
Restricted Stock [Member] \| Chief Executive Officer [Member]
Share-based Compensation
Restricted shares granted		13,053
Restricted stock closing price awarded (in dollars per share) \| $ / shares		$ 76.61
Stock-based compensation expense \| $											200
Annual incremental vesting percentage		33.00%
Restricted Stock [Member] \| Former Officers [Member]
Share-based Compensation
Number of officers \| item				3
Restricted shares granted				18,324
Restricted stock closing price awarded (in dollars per share) \| $ / shares				$ 61.09
Stock-based compensation expense \| $											$ 1,100
Restricted Stock [Member] \| Non-employee directors [Member]
Share-based Compensation
Restricted shares granted								18,000	21,000	21,000
Restricted stock closing price awarded (in dollars per share) \| $ / shares								$ 87.21	$ 71.56	$ 85.90
Vesting period								1 year	1 year	1 year
Stock-based compensation expense \| $												1,600	1,600
Number of non-employee directors \| director								12	12	12
Restricted shares granted per non-employee								1,500	1,750	1,750
Restricted Stock [Member] \| Executive officers [Member]
Share-based Compensation
Restricted shares granted					31,158	14,522	25,241
Restricted stock closing price awarded (in dollars per share) \| $ / shares					$ 87.63	$ 85.67	$ 75.45
Stock-based compensation expense \| $												$ 1,400	$ 2,000
Annual incremental vesting percentage					33.00%	33.00%	33.00%
2005 Stock Incentive Plan [Member] \| Stock Options [Member] \| Minimum
Share-based Compensation
Vesting period												1 year
Expiration period, after grant date												2 years
2005 Stock Incentive Plan [Member] \| Stock Options [Member] \| Maximum
Share-based Compensation
Vesting period												5 years
Expiration period, after grant date												5 years
2011 Management Incentive Plan [Member]
Share-based Compensation
Common stock shares authorized under plan															1,500,000
2011 Management Incentive Plan [Member] \| Restricted Stock [Member]
Share-based Compensation
Restricted shares granted												72
Restricted stock closing price awarded (in dollars per share) \| $ / shares												$ 81.19
Forfeited, Number of Shares											14
Vested, Number of Shares												51