Income Taxes (Narrative) (Details) - USD ($)	12 Months Ended
	Nov. 30, 2021	Nov. 30, 2020	Nov. 30, 2019	Nov. 30, 2018
Tax Credit Carryforward [Line Items]
Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent	21.00%	21.00%	21.00%
Current, Federal	$ 71,700,000	$ 98,300,000	$ 52,300,000
Non-U.S. subsidiaries tax loss carryforwards	186,200,000
Tax loss carryforwards expiring through 2022	1,100,000
Tax loss carryforwards expiring from 2023 through 2024	18,700,000
Tax Loss Carryforwards expiring from 2025 Through 2038	88,000,000
Deferred Tax Assets, Capital Loss Carryforwards	5,000,000
Net increase in the valuation allowance	1,200,000
Unrecognized tax benefits	26,800,000	39,300,000	32,000,000.0	$ 27,900,000
Statute expirations	6,000,000.0	4,200,000	2,500,000
Interest and penalty (income) / expense	(3,700,000)	800,000	2,100,000
Interest and penalties accrued	4,700,000	8,300,000
Tax benefits that would impact effective tax rate	26,800,000	39,300,000	32,000,000
Deferred, Federal	(23,500,000)	$ (4,600,000)	$ (26,400,000)
Deferred Tax Assets, Operating Loss Carryforwards, Not Subject to Expiration	78,400,000
Undistributed Earnings of Foreign Subsidiaries	1,300,000,000
Expiration Year 2030
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount	7,000,000
Expiration Year 2031
Tax Credit Carryforward [Line Items]
Tax Credit Carryforward, Amount	$ 5,300,000