Nature of Business and Summary of Significant Accounting Policies (Narrative) (Details)	12 Months Ended
	Nov. 30, 2021 USD ($) developer software_vendor	Nov. 30, 2020 USD ($)	Nov. 30, 2019 USD ($)	Feb. 28, 2022 USD ($)	Nov. 30, 2018 USD ($)
Summary Of Significant Accounting Policies [Line Items]
Number of independent software vendors, more than | software_vendor	1,700
Number of developers, more than | developer	3,500,000
Capitalized software development costs	$ 0	$ 0	$ 0
Impairment of goodwill and intangible assets	0	0	0
Impairment of intangible assets	0	0	22,700,000
Other comprehensive income (loss), tax	700,000	1,600,000	400,000
Advertising costs	900,000	500,000	800,000
Acquisition-related expenses	4,102,000	3,637,000	1,658,000
Restructuring related costs	6,308,000	5,906,000	6,331,000
Stockholders' equity attributable to parent	412,489,000	346,013,000	$ 330,282,000		$ 324,002,000
Decrease in additional paid in capital	(354,235,000)	(305,802,000)
Increase in retained earnings	(90,256,000)	(72,547,000)
Decrease in deferred tax liabilities	$ (14,163,000)	0
Cumulative Effect, Period of Adoption, Adjustment
Summary Of Significant Accounting Policies [Line Items]
Stockholders' equity attributable to parent					$ 4,781,000
Forecast | Accounting Standards Update 2020-06 | Cumulative Effect, Period of Adoption, Adjustment
Summary Of Significant Accounting Policies [Line Items]
Decrease in additional paid in capital				$ 47,500,000
Unamortized discount				56,000,000
Increase in retained earnings				(4,900,000)
Decrease in deferred tax liabilities				$ 13,400,000
Software licenses
Summary Of Significant Accounting Policies [Line Items]
Period of payments of licenses upon execution of contract	30 days
Minimum | Stock Options
Summary Of Significant Accounting Policies [Line Items]
Stock-based compensation service period	4 years
Minimum | Restricted Stock Units (RSUs)
Summary Of Significant Accounting Policies [Line Items]
Stock-based compensation service period	3 years
Minimum | Software licenses
Summary Of Significant Accounting Policies [Line Items]
Expected timing of satisfaction, period	1 year
Minimum | Maintenance
Summary Of Significant Accounting Policies [Line Items]
Expected timing of satisfaction, period	1 year
Minimum | Services
Summary Of Significant Accounting Policies [Line Items]
Expected timing of satisfaction, period	1 year
Maximum | Stock Options
Summary Of Significant Accounting Policies [Line Items]
Stock-based compensation service period	5 years
Maximum | Restricted Stock Units (RSUs)
Summary Of Significant Accounting Policies [Line Items]
Stock-based compensation service period	4 years
Maximum | Software licenses
Summary Of Significant Accounting Policies [Line Items]
Expected timing of satisfaction, period	3 years
Maximum | Maintenance
Summary Of Significant Accounting Policies [Line Items]
Expected timing of satisfaction, period	3 years
Maximum | Services
Summary Of Significant Accounting Policies [Line Items]
Expected timing of satisfaction, period	3 years
Computer equipment and software | Minimum
Summary Of Significant Accounting Policies [Line Items]
Useful lives of major asset	3 years
Computer equipment and software | Maximum
Summary Of Significant Accounting Policies [Line Items]
Useful lives of major asset	7 years
Buildings and Improvements | Minimum
Summary Of Significant Accounting Policies [Line Items]
Useful lives of major asset	5 years
Buildings and Improvements | Maximum
Summary Of Significant Accounting Policies [Line Items]
Useful lives of major asset	39 years
Furniture and fixtures | Minimum
Summary Of Significant Accounting Policies [Line Items]
Useful lives of major asset	5 years
Furniture and fixtures | Maximum
Summary Of Significant Accounting Policies [Line Items]
Useful lives of major asset	7 years
Internal Use Software
Summary Of Significant Accounting Policies [Line Items]
Useful lives of major asset	3 years
Amortization	$ 0	$ 0