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Stock-Based Compensation (Tables)
12 Months Ended
Nov. 30, 2020
Share-based Payment Arrangement [Abstract]  
Summary of Stock Option Activity
A summary of stock option activity under all the plans is as follows:
 
 SharesWeighted AverageWeighted Average Remaining Contractual Term
Aggregate Intrinsic Value(1)
(in thousands)Exercise Price(in years)(in thousands)
Options outstanding, December 1, 20191,423 $37.26 
Granted611 43.34 
Exercised(137)31.84 
Canceled(224)42.08 
Options outstanding, November 30, 20201,673 $39.28 4.9$7,125 
Exercisable, November 30, 2020711 $37.28 4.0$4,315 
Vested or expected to vest, November 30, 20201,672 $39.28 4.9$7,125 

(1)The aggregate intrinsic value was calculated based on the difference between the closing price of our stock on November 30, 2020 of $40.39 and the exercise prices for all options outstanding.
Summary of Status of Restricted Stock Units
A summary of restricted stock units' activity is as follows (in thousands, except per share data):
 
 Number of SharesWeighted Average Fair Value
Restricted stock units outstanding, December 1, 2019829 $38.15 
Granted538 43.80 
Issued(416)36.20 
Canceled(155)39.96 
Restricted stock units outstanding, November 30, 2020796 $42.65 
Schedule of Valuation Assumptions
We estimated the fair value of stock options and ESPP awards granted in fiscal years 2020, 2019 and 2018 on the measurement dates using the Black-Scholes option valuation model, and LTIP awards using the Monte Carlo Simulation valuation model, with the following weighted average assumptions:
 
Fiscal Year Ended
November 30, 2020November 30, 2019November 30, 2018
Stock options:
Expected volatility29.0 %25.0 %22.8 %
Risk-free interest rate1.1 %2.5 %2.3 %
Expected life (in years)4.84.84.8
Expected dividend yield1.6 %1.8 %1.1 %
Employee stock purchase plan:
Expected volatility38.2 %30.6 %23.8 %
Risk-free interest rate0.2 %2.3 %2.3 %
Expected life (in years)1.31.61.7
Expected dividend yield2.0 %1.7 %1.5 %
Long-term incentive plan:
Expected volatility34.7 %32.2 %27.4 %
Risk-free interest rate1.1 %2.5 %2.1 %
Expected life (in years)2.82.82.9
Expected dividend yield— %1.7 %1.7 %
Stock Options and Stock Awards Activity
The following additional activity occurred under our plans (in thousands):
 
Fiscal Year Ended
November 30, 2020November 30, 2019November 30, 2018
Total intrinsic value of stock options on date exercised$1,340 $1,388 $3,692 
Total fair value of deferred stock units on date vested1,547 1,853 1,690 
Total fair value of restricted stock units on date vested15,499 14,720 14,741 
Classification of Stock-Based Compensation
The following table provides the classification of stock-based compensation as reflected in our consolidated statements of operations (in thousands):
 
Fiscal Year Ended
November 30, 2020November 30, 2019November 30, 2018
Cost of maintenance and services$1,336 $1,134 $616 
Sales and marketing4,462 4,155 2,959 
Product development7,286 7,205 8,242 
General and administrative10,398 10,817 8,752 
Total stock-based compensation$23,482 $23,311 $20,569 
Income tax benefit included in the provision for income taxes$4,541 $4,661 $4,345