Additional stock-based compensation expenses related to separation and acceleration vesting

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- Definition

Employee stock purchase plan offering period

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- Definition

Employee Stock Purchase Plan Purchase Periods

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- Definition

Number of executives employment terminated

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- Definition

Restricted stock unit equal to number of common stock share.

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- Definition

Share-based compensation arrangement by share-based payment award, previous vesting period.

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No definition available.

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- Definition

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

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No definition available.

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- Definition

Price of a single share of a number of saleable stocks of a company.

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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

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

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-Name Staff Accounting Bulletin (SAB)

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- Definition

As of the balance sheet date, the aggregate unrecognized cost of equity-based awards made to employees under equity-based compensation awards that have yet to vest.

+ References

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- Definition

The weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, using a decimal to express in number of years.

+ References

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- Definition

Description of the period of time over 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, which may be expressed in a variety of ways (for example, in years, month and year).

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- Definition

The period of time an equity-based award is expected to be outstanding. An equity-based award's expected term is generally determined based on, among other factors, the instrument's contractual term and the effects of employees' expected exercise and post-vesting employment termination behavior.

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-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

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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).

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-Publisher FASB

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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

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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-Name Statement of Financial Accounting Standard (FAS)

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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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- Definition

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

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29, 30

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-Name Regulation S-X (SX)

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-Name Statement of Financial Accounting Standard (FAS)

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Stock-Based Compensation (Narrative) (Details) (USD $)	12 Months Ended
Stock-Based Compensation (Narrative) (Details) (USD $)	Nov. 30, 2012 Y Executives	Nov. 30, 2011	Nov. 30, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Closing stock price on November 30, 2012	$ 20.11
Unrecognized stock-based compensation expense, net of expected forfeitures	$ 20,400,000
Costs are expected to be recognized, weighted average period (in years)	2.2
Stock-based compensation	28,233,000	25,999,000	18,121,000
Number of executives whose employment was terminated	3
Additional stock-based compensation expenses related to separation and acceleration vesting	1,800,000
2008 Stock Option And Incentive Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issuable under stock plans (in shares)	47,010,000
Shares available for grant under stock plans (in shares)	4,600,000
2002 Nonqualified Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issuable under stock plans (in shares)	9,750,000
Shares available for grant under stock plans (in shares)	510,000
2004 Inducement Stock Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issuable under stock plans (in shares)	1,500,000
Shares available for grant under stock plans (in shares)	578,000
Stock Options Granted Prior To Fiscal 2005 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)	10
Stock Options Granted From Fiscal 2005 Through Fiscal 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)	7
Stock Options Granted In 2011 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expected life (in years)	7
Employee Stock Purchase Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares issuable under stock plans (in shares)	8,650,000
Expected life (in years)	1.5	1.6	1.5
ESPP offering period (in months)	27 months
ESPP number of purchase periods	9
ESPP purchase price (percentage)	85.00%
Employee stock purchase plan, issued shares (in shares)	376,000	594,000	604,000
Weighted average purchase price of shares (in dollars per share)	$ 15.04	$ 11.52	$ 10.28
Shares available and reserved for issuance (in shares)	1,211,000
Weighted average estimated fair value of options granted, per share (in dollars per share)	$ 6.53	$ 6.44	$ 5.97
CEO Separation Agreement [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)		15 months
Previous exercise period (in months)		P3M
Stock-based compensation		4,600,000
Non-Core Product Line Divestiture [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	1,300,000
General And Administrative [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	10,983,000	12,888,000	6,948,000
Additional stock-based compensation expenses related to separation and acceleration vesting	900,000
Sales And Marketing [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	4,280,000	3,258,000	2,909,000
Additional stock-based compensation expenses related to separation and acceleration vesting	$ 900,000
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Weighted average estimated fair value of options granted, per share (in dollars per share)	$ 5.66	$ 7.31	$ 5.84
Stock Options [Member] \| Stock Options Granted Prior To Fiscal 2005 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	5 years
Stock Options [Member] \| Stock Options Granted From Fiscal 2005 Through Fiscal 2010 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	5 years
Stock Options [Member] \| Stock Options Granted In 2011 [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	4 years
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period (in years)	3 years
Number of common stock shares each restricted stock unit represents (in shares)	1