Stockholders' Equity	12 Months Ended
Nov. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Stockholders' Equity	NOTE 4—STOCKHOLDERS’ EQUITY: 2013 Stock Incentive Plan The Company’s 2013 Stock Incentive Plan was adopted by its Board of Directors and approved by its stockholders in 2013. The 2013 Stock Plan as amended and restated from time to time provides for the direct award or sale of shares of common stock, restricted stock awards, and restricted stock units, the grant of options to purchase shares of common stock and the award of stock appreciation rights to employees and non-employee directors and consultants. The number of authorized shares under the 2013 Stock Incentive Plan will not exceed the sum of 1,696 shares of common stock, plus any shares under the Amended and Restated 2003 Stock Incentive Plan (the “2003 Stock Incentive Plan”) that are subject to outstanding awards granted to the extent those awards expire, terminate or are canceled for any reason prior to exercise without the issuance or delivery of such shares, any shares subject to vesting restrictions that are subsequently forfeited, and any reserved shares not issued or subject to outstanding awards, up to 2,750 shares. No participant in the 2013 Stock Incentive Plan may receive option grants or stock appreciation rights, restricted shares or restricted stock units of more than 1,500 shares per calendar year, or more than 2,500 shares in the participant’s first calendar year of service. The option price for incentive stock options will not be less than 100% of the fair market value of the stock on the date of grant. Under the 2013 Stock Incentive Plan, qualified employees are eligible for the grant of incentive stock options to purchase shares of common stock. Qualified employees and outside directors and consultants are eligible for the grant of non-qualified stock options, stock appreciation rights, restricted stock grants and restricted stock units. The outstanding stock options and restricted stock awards generally vest over a five-year period and the stock options have a contractual term of ten years. Certain restricted stock awards and units granted to employees vest over a four year period with 67% of the award scheduled to vest on the third anniversary and remaining 33% scheduled to vest on the fourth anniversary. Stock options granted to qualified non-employee directors vest as to one third of the stock underlying the stock options on the first anniversary date of the grant and the remaining vest monthly over a two-year period starting one month after the first anniversary of the date of grant. Restricted stock granted to qualified non-employee directors vests one fourth on a quarterly basis over a one-year period. The holders of restricted stock awards are entitled to the same voting, dividend and other rights as the Company’s common stockholders. Certain restricted stock units could vest subject to the achievement of individual, divisional or company-wide performance goals. The majority of the performance-based restricted stock units vest at the end of three-year requisite service periods, subject to the achievement of company-wide financial performance goals approved by the Compensation Committee. Unless terminated sooner, the 2013 Stock Incentive Plan will terminate on March 19, 2023. 2003 Stock Incentive Plan The Company’s 2003 Stock Incentive Plan terminated in March 2013. The number of authorized shares under the 2003 Stock Incentive Plan was 14,120 shares of common stock. The equity awards outstanding under this plan as of November 30, 2019 continue to be governed by their existing terms. The outstanding stock options granted to qualified employees vested over a five-year period and have a contractual term of ten years. Stock options granted to qualified non-employee directors vested over three years. The exercise price of incentive stock option grants was equal to 100% of the fair market value of those shares on the date of the grant. 2014 Employee Stock Purchase Plan On January 6, 2014, the Board of Directors approved the adoption of the 2014 Employee Stock Purchase Plan (“2014 ESPP”) to succeed the Company's 2003 Employee Stock Purchase Plan. The 2014 ESPP, as amended, commenced on January 1, 2015 with 750 authorized shares. Under the 2014 ESPP, there are four offering periods of three months each in a calendar year. Eligible employees in the United States can choose to have a fixed percentage deducted from their bi-weekly compensation to purchase the Company’s common stock at a discount of 5%. The maximum number of shares a participant may purchase is 0.625 during a single accumulation period subject to a maximum purchase limit of $10 in a calendar year. Employees at associate vice president level and above are not eligible to participate in the plan. Share-based compensation expense related to the 2014 ESPP was immaterial during fiscal years 2019, 2018 and 2017. Share Repurchase Programs In June 2017, the Board of Directors authorized a three-year $300,000 share repurchase program, effective July 1, 2017, pursuant to which the Company may repurchase its outstanding common stock from time to time in the open market or through privately negotiated transactions. During fiscal year November 30, 2019, the Company repurchased 160 shares for a total cost of $15,184. As of November 30, 2019, the Company repurchased shares aggregating 840 at a total cost of $81,172. The share purchases were made on the open market and the shares repurchased by the Company are held in treasury for general corporate purposes. In June 2014, the Board of Directors authorized a three-year $100,000 share repurchase program pursuant to which the Company could repurchase its outstanding common stock from time to time in the open market or through privately negotiated transactions. Through the expiration of the program in June 2017, the Company had purchased 207 shares at a total cost of $15,654. The share purchases were made on the open market and the shares repurchased by the Company are held in treasury for general corporate purposes. Dividends The Company declared cumulative cash dividends of $1.50, $1.40 and $1.05 per share during the years ended November 30, 2019, 2018 and 2017, respectively. On January 9, 2020, the Company announced a cash dividend of $0.40 per share to stockholders of record as of January 24, 2020, payable on January 31, 2020. Dividends are subject to continued capital availability, compliance with the covenants and conditions in some of the Company's credit facilities and the declaration by the Board of Directors in the best interest of the Company’s stockholders.

Stockholders' Equity

12 Months Ended

Nov. 30, 2019

Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]

NOTE 4—STOCKHOLDERS’ EQUITY:

2013 Stock Incentive Plan

The Company’s 2013 Stock Incentive Plan was adopted by its Board of Directors and approved by its stockholders in 2013. The 2013 Stock Plan as amended and restated from time to time provides for the direct award or sale of shares of common stock, restricted stock awards, and restricted stock units, the grant of options to purchase shares of common stock and the award of stock appreciation rights to employees and non-employee directors and consultants.

The number of authorized shares under the 2013 Stock Incentive Plan will not exceed the sum of 1,696 shares of common stock, plus any shares under the Amended and Restated 2003 Stock Incentive Plan (the “2003 Stock Incentive Plan”) that are subject to outstanding awards granted to the extent those awards expire, terminate or are canceled for any reason prior to exercise without the issuance or delivery of such shares, any shares subject to vesting restrictions that are subsequently forfeited, and any reserved shares not issued or subject to outstanding awards, up to 2,750 shares. No participant in the 2013 Stock Incentive Plan may receive option grants or stock appreciation rights, restricted shares or restricted stock units of more than 1,500 shares per calendar year, or more than 2,500 shares in the participant’s first calendar year of service. The option price for incentive stock options will not be less than 100% of the fair market value of the stock on the date of grant.

Under the 2013 Stock Incentive Plan, qualified employees are eligible for the grant of incentive stock options to purchase shares of common stock. Qualified employees and outside directors and consultants are eligible for the grant of non-qualified stock options, stock appreciation rights, restricted stock grants and restricted stock units. The outstanding stock options and restricted stock awards generally vest over a five-year period and the stock options have a contractual term of ten years. Certain restricted stock awards and units granted to employees vest over a four year period with 67% of the award scheduled to vest on the third anniversary and remaining 33% scheduled to vest on the fourth anniversary. Stock options granted to qualified non-employee directors vest as to one third of the stock underlying the stock options on the first anniversary date of the grant and the remaining vest monthly over a two-year period starting one month after the first anniversary of the date of grant. Restricted stock granted to qualified non-employee directors vests one fourth on a quarterly basis over a one-year period. The holders of restricted stock awards are entitled to the same voting, dividend and other rights as the Company’s common stockholders. Certain restricted stock units could vest subject to the achievement of individual, divisional or company-wide performance goals. The majority of the performance-based restricted stock units vest at the end of three-year requisite service periods, subject to the achievement of company-wide financial performance goals approved by the Compensation Committee.

Unless terminated sooner, the 2013 Stock Incentive Plan will terminate on March 19, 2023.

2003 Stock Incentive Plan

The Company’s 2003 Stock Incentive Plan terminated in March 2013. The number of authorized shares under the 2003 Stock Incentive Plan was 14,120 shares of common stock. The equity awards outstanding under this plan as of November 30, 2019 continue to be governed by their existing terms. The outstanding stock options granted to qualified employees vested over a five-year period and have a contractual term of ten years. Stock options granted to qualified non-employee directors vested over three years. The exercise price of incentive stock option grants was equal to 100% of the fair market value of those shares on the date of the grant.

2014 Employee Stock Purchase Plan

On January 6, 2014, the Board of Directors approved the adoption of the 2014 Employee Stock Purchase Plan (“2014 ESPP”) to succeed the Company's 2003 Employee Stock Purchase Plan. The 2014 ESPP, as amended, commenced on January 1, 2015 with 750 authorized shares. Under the 2014 ESPP, there are four offering periods of three months each in a calendar year. Eligible employees in the United States can choose to have a fixed percentage deducted from their bi-weekly compensation to purchase the Company’s common stock at a discount of 5%. The maximum number of shares a participant may purchase is 0.625 during a single accumulation period subject to a maximum purchase limit of $10 in a calendar year. Employees at associate vice president level and above are not eligible to participate in the plan.

Share-based compensation expense related to the 2014 ESPP was immaterial during fiscal years 2019, 2018 and 2017.

Share Repurchase Programs

In June 2017, the Board of Directors authorized a three-year $300,000 share repurchase program, effective July 1, 2017, pursuant to which the Company may repurchase its outstanding common stock from time to time in the open market or through privately negotiated transactions. During fiscal year November 30, 2019, the Company repurchased 160 shares for a total cost of $15,184. As of November 30, 2019, the Company repurchased shares aggregating 840 at a total cost of $81,172. The share purchases were made on the open market and the shares repurchased by the Company are held in treasury for general corporate purposes.

In June 2014, the Board of Directors authorized a three-year $100,000 share repurchase program pursuant to which the Company could repurchase its outstanding common stock from time to time in the open market or through privately negotiated transactions. Through the expiration of the program in June 2017, the Company had purchased 207 shares at a total cost of $15,654. The share purchases were made on the open market and the shares repurchased by the Company are held in treasury for general corporate purposes.

Dividends

The Company declared cumulative cash dividends of $1.50, $1.40 and $1.05 per share during the years ended November 30, 2019, 2018 and 2017, respectively. On January 9, 2020, the Company announced a cash dividend of $0.40 per share to stockholders of record as of January 24, 2020, payable on January 31, 2020. Dividends are subject to continued capital availability, compliance with the covenants and conditions in some of the Company's credit facilities and the declaration by the Board of Directors in the best interest of the Company’s stockholders.