Income Taxes (Schedule Of Income Tax Expense (Benefit)) (Details) (USD $)	12 Months Ended
Sep. 27, 2014	Sep. 28, 2013	Sep. 29, 2012
Income Taxes [Abstract]
Federal, current	$ 40,475,000us-gaap_CurrentFederalTaxExpenseBenefit	$ 73,000us-gaap_CurrentFederalTaxExpenseBenefit	$ 6,734,000us-gaap_CurrentFederalTaxExpenseBenefit
State, current	4,227,000	(2,061,000)	2,967,000
Total current	44,702,000us-gaap_CurrentIncomeTaxExpenseBenefit	(1,988,000)us-gaap_CurrentIncomeTaxExpenseBenefit	9,701,000us-gaap_CurrentIncomeTaxExpenseBenefit
Federal, deferred	(15,913,000)	7,368,000	12,149,000
State, deferred	(439,000)	67,000	2,053,000
Total deferred	(16,352,000)us-gaap_DeferredIncomeTaxExpenseBenefit	7,435,000us-gaap_DeferredIncomeTaxExpenseBenefit	14,202,000us-gaap_DeferredIncomeTaxExpenseBenefit
Income tax expense	$ 28,350,000us-gaap_IncomeTaxExpenseBenefit	$ 5,447,000us-gaap_IncomeTaxExpenseBenefit	$ 23,903,000us-gaap_IncomeTaxExpenseBenefit

Amount of current federal tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of current state and local tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred federal income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.

Amount of deferred state and local tax expense (benefit) pertaining to income (loss) from continuing operations.