Consolidated Statements of Shareholders' Equity (Unaudited) - Parenthetical - $ / shares			3 Months Ended
Oct. 23, 2019	Oct. 22, 2019	May 29, 2021	Feb. 27, 2021	Nov. 28, 2020	May 30, 2020	Feb. 29, 2020	Nov. 30, 2019
Common Shares
Dividends declared (in dollars per share)	$ 0.25	$ 0.1125	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25	$ 0.25
Class B Common Stock
Dividends declared (in dollars per share)	$ 0.20	$ 0.09	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.20	$ 0.20

Aggregate dividends declared during the period for each share of common stock outstanding.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Name:	us-gaap_CommonStockDividendsPerShareDeclared
Namespace Prefix:	us-gaap_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration