Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Reference 3: 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

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(28))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

Name:	us-gaap_StockRepurchasedDuringPeriodShares
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration

Shares Repurchased and Dividends - Narrative (Details) - USD ($)			3 Months Ended
	Oct. 20, 2021	Oct. 23, 2019	Nov. 27, 2021	Nov. 28, 2020	Oct. 18, 2021	Jan. 02, 2019
Equity, Class of Treasury Stock [Line Items]
Shares repurchased (in shares)			22,750	41,000
Total cost of shares repurchased divided by the total number of shares repurchased			$ 209.73	$ 176.01
Stock repurchase remaining amount			$ 97,300,000
Maximum
Equity, Class of Treasury Stock [Line Items]
Stock repurchase authorized, Value					$ 100,000,000.0	$ 100,000,000.0
Class B Common Stock
Equity, Class of Treasury Stock [Line Items]
Quarterly dividend amount (in dollars per share)	$ 0.24	$ 0.20	$ 0.24	0.20
Common Stock
Equity, Class of Treasury Stock [Line Items]
Quarterly dividend amount (in dollars per share)	$ 0.30	$ 0.25	$ 0.30	$ 0.25