Schedule II: Valuation and Qualifying Acounts (Details) - USD ($) $ in Thousands		12 Months Ended
		Nov. 29, 2020	Nov. 24, 2019	Nov. 25, 2018
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		$ 6,172	$ 10,037	$ 11,726
Additions Charged to Expenses/Net Sales/(Releases) to Tax Expense		7,858	(978)	2,284
Release	[1]	(658)	2,887	3,973
Balance at End of Period		14,688	6,172	10,037
Sales Returns [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		0	53,684	47,401
Additions Charged to Expenses/Net Sales/(Releases) to Tax Expense		295,356	259,866	245,665
Release	[1]	295,356	313,550	239,382
Balance at End of Period		0	0	53,684
Sales Discounts and Incentives [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		1,756	120,704	135,139
Additions Charged to Expenses/Net Sales/(Releases) to Tax Expense		304,590	351,686	357,929
Release	[1]	304,863	470,634	372,364
Balance at End of Period		1,483	1,756	120,704
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset [Member]
SEC Schedule, 12-09, Valuation and Qualifying Accounts Disclosure [Line Items]
Balance at Beginning of Period		19,611	21,970	38,692
Additions Charged to Expenses/Net Sales/(Releases) to Tax Expense		18,271	(81)	(16,242)
Release	[1]	(661)	2,278	480
Balance at End of Period		$ 38,543	$ 19,611	$ 21,970

[1] The charges to the accounts are for the purposes for which the allowances were created.