Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Narrative) (Details) - $ / shares	3 Months Ended	9 Months Ended
Jul. 01, 2018	Jul. 02, 2017	Jul. 01, 2018	Jul. 02, 2017
Debt Instrument [Line Items]
Earnings per share - basic	$ 0.62	$ 0.48	$ 2.69	$ 1.44
Accounting Standards Update 2016-09 [Member]
Debt Instrument [Line Items]
Earnings per share - basic	$ 0.00		$ 0

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

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+ Details