Fair Value Measurements (Schedule Of Financial Liabilities Carried At Fair Value) (Details) (Investments Held In Supplemental Retirement Plan [Member], USD $) In Thousands, unless otherwise specified	Dec. 28, 2012		Sep. 28, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	$ 2,061	[1]
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	2,061	[1]	2,140	[1]
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	0	[1]	0	[1]
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	$ 0	[1]	$ 0	[1]

[1] These liabilities are included within accrued liabilities and within other non-current liabilities.