Fair Value Measurements (Financial Assets And Liabilities Measured At Fair Value On Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified																																					12 Months Ended
	Sep. 28, 2014 Fair Value, Measurements, Recurring [Member]	Sep. 29, 2013 Fair Value, Measurements, Recurring [Member]	Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Non-Qualified Deferred Compensation Plan [Member]	Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Non-Qualified Deferred Compensation Plan [Member]	Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Interest Rate Swaps [Member]	Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Interest Rate Swaps [Member]	Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]	Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Non-Qualified Deferred Compensation Plan [Member]		Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Non-Qualified Deferred Compensation Plan [Member]		Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Interest Rate Swaps [Member]		Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] Interest Rate Swaps [Member]		Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) [Member]	Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) [Member]	Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) [Member] Non-Qualified Deferred Compensation Plan [Member]		Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) [Member] Non-Qualified Deferred Compensation Plan [Member]		Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) [Member] Interest Rate Swaps [Member]		Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Significant Other Observable Inputs (Level 2) [Member] Interest Rate Swaps [Member]		Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) [Member]	Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) [Member]	Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) [Member] Non-Qualified Deferred Compensation Plan [Member]		Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) [Member] Non-Qualified Deferred Compensation Plan [Member]		Sep. 28, 2014 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) [Member] Interest Rate Swaps [Member]		Sep. 29, 2013 Fair Value, Measurements, Recurring [Member] Significant Unobservable Inputs (Level 3) [Member] Interest Rate Swaps [Member]		Sep. 28, 2014 Fair Value, Measurements, Nonrecurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total liabilities at fair value	$ (37,391)	$ (40,325)	$ (35,602)	$ (39,135)	$ (1,789)	$ (1,190)	$ (35,602)	$ (39,135)	$ (35,602)	[1],[2]	$ (39,135)	[1],[2]	$ 0	[1],[3]	$ 0	[1],[3]	$ (1,789)	$ (1,190)	$ 0	[1],[2]	$ 0	[1],[2]	$ (1,789)	[1],[3]	$ (1,190)	[1],[3]	$ 0	$ 0	$ 0	[2]	$ 0	[2]	$ 0	[3]	$ 0	[3]
Long-lived assets held and used																																					619
Long-lived assets held for sale																																					3,444
Long-lived assets held and used, impairment charges																																					570
Long-lived assets held for sale, impairment charges																																					3,517
Asset Abandoned Fair Value Measurement																																					0
Other Asset Impairment Charges																																					$ 6,486

[1] We did not have any transfers in or out of Level 1 or Level 2.

[2] We maintain an unfunded defined contribution plan for key executives and other members of management excluded from participation in our qualified savings plan. The fair value of this obligation is based on the closing market prices of the participants’ elected investments.

[3] We entered into interest rate swaps to reduce our exposure to rising interest rates on our variable debt. The fair values of our interest rate swaps are based upon Level 2 inputs which include valuation models as reported by our counterparties. The key inputs for the valuation models are quoted market prices, interest rates and forward yield curves.