Accounting Developments (Details) - USD ($) $ in Thousands	9 Months Ended
	Aug. 31, 2020	Dec. 01, 2019
Accounting Standards Update and Change in Accounting Principle [Abstract]
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201602Member
Operating ROU assets		$ 519,900
Operating lease liabilities	$ 573,316	$ 586,300