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