Employee stock purchase plan offering period

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- Definition

Employee Stock Purchase Plan Purchase Periods

+ References

No definition available.

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- Definition

Restricted stock unit equal to number of common stock share.

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Additional Holding Period

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Cumulative Performance Condition

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Performance Metrics

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Plans for which Shareholder Approval Not Required

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Number of Shareholder Approved Stock Plans

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Shares Based on Cumulative Performance Condition

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Percentage of Shares Based on Market Condition of Total Shareholder Return

+ References

No definition available.

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- Definition

Share-based Compensation Arrangement by Share-based Payment Award, Purchase Of Offering, Period

+ References

No definition available.

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- Definition

Shares available and reserved for issuance under employee stock purchase plan

+ References

No definition available.

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- Definition

Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (i)
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- Definition

Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents 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.

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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

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

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- Definition

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

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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.

+ References

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- Definition

The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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- Definition

Per share weighted-average price paid for shares purchased on open market for issuance under share-based payment arrangement.

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- Definition

Purchase price of common stock expressed as a percentage of its fair value.

+ References

No definition available.

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- Definition

Number of shares issued during the period as a result of an employee stock purchase plan.

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Stock-Based Compensation (Narrative) (Details) $ / shares in Units, $ in Millions	3 Months Ended			12 Months Ended
	Feb. 28, 2021 metric	Feb. 29, 2020 metric	Feb. 28, 2019 metric	Nov. 30, 2021 USD ($) period plan $ / shares shares	Nov. 30, 2020 $ / shares shares	Nov. 30, 2019 $ / shares shares	May 31, 2021 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of shareholder approved stock plans \| plan				1
Number of plans for which shareholder approval not required \| plan				2
Unrecognized stock-based compensation expense, net of expected forfeitures \| $				$ 36.5
Costs are expected to be recognized, weighted average period				2 years
2008 Stock Option and Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issuable under stock plans (in shares)							4,500,000
Shares available for grant under stock plans (in shares)				6,534,788
2002 Nonqualified Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant under stock plans (in shares)				107,329
2004 Inducement Stock Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares available for grant under stock plans (in shares)				466,534
Restricted Stock Units (RSUs)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				3 years
Number of common stock shares each restricted stock unit represents (in shares)				1
Long-Term Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of performance metrics \| metric	2	2	2
Stock-based compensation service period	3 years	3 years	3 years
Share-based Compensation Arrangement by Share-based Payment Award, Cumulative Performance Condition				3 years
Percentage of shares based on market conditions		50.00%	50.00%
Percentage of shares based on cumulative performance condition		50.00%	50.00%
Long-Term Incentive Plan \| Twenty Twenty One Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Cumulative Performance Condition				3 years
Percentage of shares based on market conditions				25.00%
Percentage of shares based on cumulative performance condition				75.00%
Employee Stock Purchase Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issuable under stock plans (in shares)				10,250,000
ESPP offering period				27 months
ESPP number of purchase periods \| period				9
ESPP purchase period				3 months
ESPP purchase price (as a percent)				85.00%
Employee stock purchase plan, issued shares (in shares)				277,000	237,000	189,000
Weighted average purchase price of shares (in dollars per share) \| $ / shares				$ 28.20	$ 27.86	$ 29.23
Shares available and reserved for issuance (in shares)				687,000
Additional holding period				3 months
Weighted average estimated fair value of options granted, per share (in dollars per share) \| $ / shares				$ 11.59	8.73	11.07
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period				1 year
Weighted average estimated fair value of options granted, per share (in dollars per share) \| $ / shares				$ 9.46	$ 9.59	$ 7.38