Allocated Share-based Compensation Expense, Potential Accrual

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- Definition

Period over which performance criteria outlined in the performance share agreements are required to be met for the shares outlined in the agreements to be earned.

+ References

No definition available.

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SAB TOPIC 14.F)

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

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-Section 50

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-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 14

-Section F

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- Definition

Unrecognized cost of unvested share-based compensation awards.

+ 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 (i)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

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.

+ 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

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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

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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://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(2)(iii)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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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

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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-Topic 718

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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.

+ 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 (c)(2)(i)-(ii)

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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 maximum number of shares (or other type of equity) originally approved (usually by shareholders and board of directors), net of any subsequent amendments and adjustments, for awards under the equity-based compensation plan. As stock or unit options and equity instruments other than options are awarded to participants, the shares or units remain authorized and become reserved for issuance under outstanding awards (not necessarily vested).

+ References

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- Definition

The weighted average of per share prices paid for shares purchased on the open market for issuance to employees under the plan.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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- Definition

Number of share instruments newly issued under a share-based compensation plan.

+ References

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STOCK COMPENSATION PLANS - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Thousands			3 Months Ended		9 Months Ended
	Feb. 12, 2015	Nov. 01, 2014	Jul. 31, 2015	Jul. 31, 2014	Jul. 31, 2015	Jul. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense			$ 3,095	$ 2,820	$ 13,004	$ 9,937
Service period (n years)					3 years
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense			$ 1,542	1,306	$ 4,969	3,536
Aggregate number of shares outstanding			314,300		314,300
Unrecognized share-based compensation costs			$ 9,400		$ 9,400
Unrecognized share-based compensation costs recognized, weighted average remaining vesting period (in years)					1 year 7 months 6 days
Restricted Stock \| Officers and Key Management Employees
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of restricted stock granted		54,600
Grant date fair value of restricted shares (in usd per share)		$ 84.77
Restricted Stock \| Outside Directors
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of restricted stock granted	23,000
Grant date fair value of restricted shares (in usd per share)	$ 77.97
Restricted Stock \| Outside Directors \| Scenario 1
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	1 year
Restricted Stock \| Outside Directors \| Scenario 2
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	2 years
Restricted Stock \| Outside Directors \| Scenario 3
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years
Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense			1,496	1,463	$ 7,790	6,254
Target number of common stock to be granted (in shares)		54,600
Performance period (in years)					2 years
Vesting period (in years)					1 year
Potential accrued compensation cost					$ 2,300
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense			$ 57	51	$ 245	147
Employee Stock Purchase Plan \| Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares received by participants					11,869
Average price per share purchased by participants (in usd per share)			$ 81.49		$ 81.49
Employee Stock Purchase Plan \| Matching Restricted Shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares received by participants					2,881
Performance Share Plan 2011 \| Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense			$ 0	393	$ 0	1,134
Performance Share Plan 2012 \| Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense			$ 709	1,070	$ 2,165	5,120
Aggregate number of shares outstanding			186,951		186,951
Performance Share Plan 2013 \| Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense			$ 787	0	$ 5,625	0
Aggregate number of shares outstanding			146,918		146,918
Performance Share Plan 2014 \| Performance Based Awards
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Total stock based compensation expense			$ 0	$ 0	$ 0	$ 0