Income Taxes (Details) - USD ($)	3 Months Ended
	Feb. 29, 2020	Feb. 28, 2019	Nov. 30, 2019
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 149,500,000		$ 125,600,000
Unrecognized tax benefits that would impact effective tax rate in future	118,200,000		99,500,000
Accrued interest on unrecognized tax benefits	58,500,000		55,600,000
Accrued penalties on unrecognized tax benefits	0		$ 0
Income tax expense	$ 64,013,000	$ 16,220,000
Effective income tax rate	27.20%	25.90%