Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended		6 Months Ended
	May 31, 2023	May 31, 2022	May 31, 2023	May 31, 2022	Nov. 30, 2022
Income Tax Disclosure [Abstract]
Income tax credits and adjustments	$ 6,800,000	$ 600,000	$ 12,500,000	$ 800,000
Tax benefits from share-based compensation	1,100,000		3,800,000	2,200,000
Nondeductible expense	(3,500,000)	$ (2,200,000)	(6,600,000)	$ (3,900,000)
Deferred tax assets	167,400,000		167,400,000		$ 178,000,000
Deferred tax assets, valuation allowance	$ 17,100,000		17,100,000		$ 17,100,000
Adjustments to deferred tax valuation allowance			$ 0