Income Taxes (Narrative) (Details) - USD ($)	3 Months Ended
	Feb. 28, 2023	Feb. 28, 2022	Nov. 30, 2022
Income Tax Disclosure [Abstract]
Income tax credits and adjustments	$ 5,700,000	$ 200,000
Tax benefits from share-based compensation	2,700,000	2,200,000
Nondeductible expense	3,100,000	$ 1,700,000
Deferred tax assets	173,000,000		$ 178,000,000
Deferred tax assets, valuation allowance	17,100,000		$ 17,100,000
Adjustments to deferred tax valuation allowance	$ 0