Leases (Lease Costs) (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
	May 31, 2020	May 31, 2020
Leases [Abstract]
Operating lease costs	$ 19,320	$ 38,569
Variable lease costs	2,561	6,076
Less: Sublease income	(1,848)	(3,696)
Total lease cost, net	$ 20,033	$ 40,949