Income Taxes (Details) - USD ($) $ in Thousands		3 Months Ended				9 Months Ended
	Aug. 31, 2019	Aug. 31, 2020	Aug. 31, 2019	May 31, 2019	Feb. 28, 2019	Aug. 31, 2020	Aug. 31, 2019
Income Tax Contingency [Line Items]
Effective income tax rate		21.00%	(11.00%)			22.00%	18.00%
Provision (benefit) for income taxes		$ 6,254	$ (1,315)			$ 17,947	$ 6,932
Scenario, Adjustment
Income Tax Contingency [Line Items]
Effective income tax rate			18.00%
Provision (benefit) for income taxes	$ (3,600)
Tax Treatment Of Intercompany Sale Of Intellectual Property
Income Tax Contingency [Line Items]
Provision (benefit) for income taxes				$ 2,500	$ 1,100