Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	May 31, 2020	May 31, 2019	Feb. 28, 2019	May 31, 2020	May 31, 2019
Income Tax Contingency [Line Items]
Effective income tax rate	25.00%	34.00%		24.00%	32.00%
Income tax expense (benefit)	$ 5,494	$ 4,243		$ 11,693	$ 8,247
Tax Treatment Of Intercompany Sale Of Intellectual Property
Income Tax Contingency [Line Items]
Income tax expense (benefit)		$ 2,500	$ 1,100
Scenario, Adjustment
Income Tax Contingency [Line Items]
Effective income tax rate		14.00%			18.00%
Income tax expense (benefit)		$ 3,600	$ 3,600