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Dividends (Narrative) (Details) - $ / shares				3 Months Ended		9 Months Ended
	Apr. 13, 2023	Jan. 12, 2023	Oct. 13, 2022	Jun. 24, 2023	Jun. 25, 2022	Jun. 24, 2023	Jun. 25, 2022
Class A Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock				$ 0.165	$ 0.165	$ 0.495	$ 0.495
Class B Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock				$ 0.150	$ 0.150	$ 0.450	$ 0.450
Dividend 1 [Member]
Dividends Payable [Line Items]
Dividend payment date						Oct. 13, 2022
Dividend record date						Oct. 06, 2022
Dividend 1 [Member] | Class A Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock			$ 0.165
Dividend 1 [Member] | Class B Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock			$ 0.15
Dividend 2 [Member]
Dividends Payable [Line Items]
Dividend payment date						Jan. 12, 2023
Dividend record date						Jan. 06, 2023
Dividend 2 [Member] | Class A Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock		$ 0.165
Dividend 2 [Member] | Class B Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock		$ 0.15
Dividend 3 [Member]
Dividends Payable [Line Items]
Dividend payment date						Apr. 13, 2023
Dividend record date						Apr. 06, 2023
Dividend 3 [Member] | Class A Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock	$ 0.165
Dividend 3 [Member] | Class B Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock	$ 0.15

X

- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1

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Date the declared dividend will be paid, in YYYY-MM-DD format.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482913/230-10-50-3

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