Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020	Nov. 30, 2020
Income Tax Disclosure [Abstract]
Unrecognized tax benefits	$ 190,700		$ 168,600
Unrecognized tax benefits that would impact effective tax rate in future	151,300		133,900
Accrued interest on unrecognized tax benefits	68,200		65,400
Accrued penalties on unrecognized tax benefits	0		$ 0
Income tax expense	$ 177,305	$ 64,013
Effective income tax rate	26.40%	27.20%