Recently Issued Accounting Pronouncements Recently Issued Accounting Pronouncements (Narrative) (Details) - Accounting Standards Update 2016-09, Excess Tax Benefit Component - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2017	Oct. 01, 2016
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Excess tax benefit from stock-based compensation, financing activities	$ (208)	$ (187)
Excess tax benefit from stock-based compensation, operating activities	$ 208	$ 187