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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Name:	us-gaap_SegmentReportingInformationLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Segment Information (Revenues Earned Directly Or Indirectly From The U.S. Federal Government And Its Agencies) (Details) - line_of_business	2 Months Ended	12 Months Ended
	Nov. 23, 2015	Oct. 02, 2015	Sep. 26, 2014	Sep. 27, 2013
Segment Reporting [Abstract]
Percentage of revenue earned from the U.S. federal government and its agencies		21.70%	17.80%	19.90%
Subsequent Event
Segment Reporting Information [Line Items]
Number of lines of business	4