Income Taxes - Schedule of Reconciliation of Provision for Income Taxes to Amounts Computed at Federal Statutory Rate (Details)	12 Months Ended
	Sep. 29, 2013	Sep. 30, 2012	Sep. 25, 2011
Reconciliation Of Provision Of Income Taxes [Line Items]
Federal statutory income tax rate	35.00%	35.00%	35.00%
State franchise tax rate, net of federal income tax benefit	5.80%	5.80%	5.80%
Tax credits	(0.50%)	(0.20%)	(0.70%)
Other	0.00%	0.10%	0.70%
Effective tax rate	40.30%	40.70%	40.80%