Aggregate dividends paid 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

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586

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Date the holder must own the stock to be entitled to the dividend, in CCYY-MM-DD format.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Dividends (Narrative) (Details) - $ / shares				3 Months Ended		9 Months Ended
Dividends (Narrative) (Details) - $ / shares	Apr. 16, 2020	Jan. 16, 2020	Oct. 17, 2019	Jun. 27, 2020	Jun. 29, 2019	Jun. 27, 2020	Jun. 29, 2019
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 I [Member]
Dividends Payable [Line Items]
Dividend payment date						Oct. 17, 2019
Dividend record date						Oct. 10, 2019
Dividend I [Member] \| Class A Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock			$ 0.165
Dividend I [Member] \| Class B Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock			$ 0.15
Dividend II [Member]
Dividends Payable [Line Items]
Dividend payment date						Jan. 16, 2020
Dividend record date						Jan. 09, 2020
Dividend II [Member] \| Class A Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock		$ 0.165
Dividend II [Member] \| Class B Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock		$ 0.15
Dividend III [Member]
Dividends Payable [Line Items]
Dividend payment date						Apr. 16, 2020
Dividend record date						Apr. 09, 2020
Dividend III [Member] \| Class A Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock	$ 0.165
Dividend III [Member] \| Class B Common Stock [Member]
Dividends Payable [Line Items]
Cash dividends per share of common stock	$ 0.15