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Dividends (Details) - $ / shares				3 Months Ended		9 Months Ended
	Apr. 23, 2015	Jan. 22, 2015	Oct. 23, 2014	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Class A Common Stock
Dividends Payable [Line Items]
Cash dividends per share of common stock				$ 0.165	$ 0.165	$ 0.495	$ 0.495
Class B Common Stock
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. 23, 2014
Dividend record date						Oct. 09, 2014
Dividend 1 [Member] | Class A Common Stock
Dividends Payable [Line Items]
Cash dividends per share of common stock			$ 0.165
Dividend 1 [Member] | Class B Common Stock
Dividends Payable [Line Items]
Cash dividends per share of common stock			$ 0.15
Dividend 2 [Member]
Dividends Payable [Line Items]
Dividend payment date						Jan. 22, 2015
Dividend record date						Jan. 08, 2015
Dividend 2 [Member] | Class A Common Stock
Dividends Payable [Line Items]
Cash dividends per share of common stock		$ 0.165
Dividend 2 [Member] | Class B Common Stock
Dividends Payable [Line Items]
Cash dividends per share of common stock		$ 0.15
Dividend 3 [Member]
Dividends Payable [Line Items]
Dividend payment date						Apr. 23, 2015
Dividend record date						Apr. 09, 2015
Dividend 3 [Member] | Class A Common Stock
Dividends Payable [Line Items]
Cash dividends per share of common stock	$ 0.165
Dividend 3 [Member] | Class B Common Stock
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://www.xbrl.org/2003/role/presentationRef



-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=27012166&loc=d3e187085-122770



Reference 2: http://www.xbrl.org/2003/role/presentationRef



-Publisher SEC



-Name Regulation S-X (SX)



-Number 210



-Section 04



-Article 3

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Topic 230



-SubTopic 10



-Section 50



-Paragraph 3



-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

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