Stockholders' Equity - Stock Option Grants, Activity And Expense (Details) $ / shares in Units, $ in Thousands			12 Months Ended
	Mar. 09, 2020 USD ($) $ / shares shares	Mar. 03, 2020 $ / shares shares	Nov. 30, 2020 USD ($) individual $ / shares shares	Nov. 30, 2019 USD ($) $ / shares shares	Nov. 30, 2018 USD ($) $ / shares shares	Nov. 30, 2017 $ / shares shares
2009 Stock Option Plan
Granted (in shares)			111,258,000	5,946,000	5,195,000
Exercise of stock options (shares)			54,930,000	32,337,000	94,677,000
Proceeds from exercise of stock options | $			$ 212	$ 166	$ 1,802
Assumptions used in determining the fair value of the stock options granted
Expected volatility (as a percent)				30.90%	30.50%
Risk free interest rates (as a percent)				2.30%	3.00%
Expected option term (in years)			8 years 6 months	8 years 6 months	8 years 6 months
Annual dividend yield (as a percent)			1.30%	1.20%	1.10%
Other Disclosures
Number of option holders | individual			28
Unrecognized compensation expense related to non-vested stock options that will be recognized during future periods
Fiscal 2021 | $			$ 442
Fiscal 2022 | $			377
Fiscal 2023 | $			244
Fiscal 2024 | $			120
Fiscal 2025 | $			23
Other Disclosures
Total grant date fair value of options vested | $			458	$ 472	$ 69
Intrinsic value of options exercised | $			$ 1,216	$ 299	$ 765
INDUS stock option plan
Outstanding at beginning of period (in shares)			189,822,000	224,001,000	333,762,000
Granted (in shares)			111,258,000	5,946,000	5,195,000
Exercised (in shares)			(54,930,000)	(32,337,000)	(94,677,000)
Forfeited (in shares)				(7,788,000)	(20,279,000)
Outstanding at end of period (in shares)			246,150,000	189,822,000	224,001,000	333,762,000
Weighted Avg. Exercise Price
Outstanding at beginning of period (in dollars per share) | $ / shares			$ 28.23	$ 28.20	$ 29.22
Granted (in dollars per share) | $ / shares			45.72	36.99	38.48
Exercised (in dollars per share) | $ / shares			28.58	28.57	31.18
Forfeited (in dollars per share) | $ / shares				32.62	33.78
Outstanding at end of period (in dollars per share) | $ / shares			$ 36.06	$ 28.23	$ 28.20	$ 29.22
Minimum
Assumptions used in determining the fair value of the stock options granted
Expected volatility (as a percent)			29.70%
Risk free interest rates (as a percent)			0.50%	2.30%
Maximum
Assumptions used in determining the fair value of the stock options granted
Expected volatility (as a percent)			30.30%
Risk free interest rates (as a percent)			0.90%
2009 Stock Option Plan
2009 Stock Option Plan
Expiration term			10 years
Number of options that may be exercised as stock appreciation rights			0
Granted (in shares)		48,000	0
Exercise price (in dollars per share) | $ / shares		$ 45.98
Compensation expense for stock options
Compensation expense (benefit) | $			$ 510	$ 261	$ 350
Related tax benefit (expense) | $				$ 43	$ 53
INDUS stock option plan
Granted (in shares)		48,000	0
2009 Stock Option Plan | Minimum
Assumptions used in determining the fair value of the stock options granted
Expected volatility (as a percent)				30.90%
2009 Stock Option Plan | Minimum | Non-employee directors
Compensation expense for stock options
Forfeiture rates (as a percent)				0.00%	0.00%	0.00%
2009 Stock Option Plan | Minimum | Executives
Compensation expense for stock options
Forfeiture rates (as a percent)				17.90%	17.90%	17.90%
2009 Stock Option Plan | Minimum | Employee
Compensation expense for stock options
Forfeiture rates (as a percent)				38.30%	38.30%	38.30%
2009 Stock Option Plan | Maximum | Non-employee directors
Compensation expense for stock options
Forfeiture rates (as a percent)				2.00%	2.00%	2.00%
2020 Incentive Award Plan
2009 Stock Option Plan
Number of shares authorized		300,000
Granted (in shares)		52,000
Exercise price (in dollars per share) | $ / shares	$ 46.91	$ 46.91
Exercise of stock options (shares)	53,293
Proceeds from exercise of stock options | $	$ 2,500
INDUS stock option plan
Granted (in shares)		52,000
Exercised (in shares)	(53,293)
2020 Incentive Award Plan | Non-employee directors
2009 Stock Option Plan
Granted (in shares)			111,258	5,946	5,195
Fair values of stock options granted (in dollars per share) | $ / shares				$ 12.87	$ 14.41
INDUS stock option plan
Granted (in shares)			111,258	5,946	5,195
2020 Incentive Award Plan | Minimum | Non-employee directors
2009 Stock Option Plan
Fair values of stock options granted (in dollars per share) | $ / shares			$ 11.00
2020 Incentive Award Plan | Maximum | Non-employee directors
2009 Stock Option Plan
Fair values of stock options granted (in dollars per share) | $ / shares			$ 14.17