Income Taxes (Details) (USD $)	3 Months Ended		9 Months Ended
	Jul. 06, 2014	Jul. 07, 2013	Jul. 06, 2014	Jul. 07, 2013
Operating Loss Carryforwards [Line Items]
Gain (Loss) on Interest Rate Cash Flow Hedge Ineffectiveness	$ 0	$ 0	$ 0	$ 0
Effective tax rates	33.80%	37.40%	35.90%	34.60%
Increase in current DTA as a result of cost study	4,300,000		4,300,000
Decrease in non-current DTA as a result of cost study	38,800,000		38,800,000
Decrease in income taxes payable as a result of cost study	9,900,000		9,900,000
Increase in income tax refunds receivable as a result of cost study	24,300,000		24,300,000
Income tax expense resulting from cost study			300,000
Gross unrecognized tax benefits associated with uncertain income tax positions	$ 800,000		$ 800,000