Income Taxes - Narrative (Details) - USD ($)	3 Months Ended			10 Months Ended	12 Months Ended
	Feb. 28, 2021	May 31, 2020	Feb. 29, 2020	Dec. 31, 2020	Nov. 30, 2022	Nov. 30, 2021	Nov. 30, 2020	Aug. 31, 2020	Nov. 30, 2019
Income Tax Contingency [Line Items]
Effective income tax rate (in percent)					23.80%	18.80%	18.60%
Income tax credits and adjustments					$ 22,600,000	$ 49,500,000	$ 18,700,000
Tax benefits from share-based compensation					1,800,000	7,100,000	12,000,000
Nondeductible expense					9,700,000	11,300,000	5,700,000
Income tax receivable due to AMT tax credit		$ 39,300,000	$ 43,300,000
AMT credit refund								$ 43,300,000
CARES Act employee retention credit	$ 4,300,000
Deferred tax asset, net					(178,000,000)	(194,800,000)
Valuation allowance					17,100,000	17,400,000
Decrease in valuation allowance					$ 300,000
Period for carry forward of tax benefits related to deferred tax assets					20 years
Unrecognized tax benefits					$ 975,000	930,000	0		$ 0
Total accrued interest and penalties related to unrecognized income tax benefits (less than $.1 at November 30, 2022)					100,000	0
State and Local Jurisdiction
Income Tax Contingency [Line Items]
Operating loss carryforwards, expired					100,000	$ 200,000	$ 400,000
State and Local Jurisdiction | Expiration between 2023 and 2042
Income Tax Contingency [Line Items]
Operating loss carryforwards					60,700,000
Tax Credit Carryforward, Expiring in 2038
Income Tax Contingency [Line Items]
Future income from continuing operations before income taxes					$ 670,000,000
Maximum
Income Tax Contingency [Line Items]
Refundable tax credit allowed per employee CARES act				$ 5,000