Fair Value Measurements (Schedule Of Financial Liabilities Carried At Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 29, 2013		Sep. 28, 2012
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	$ 2,144		$ 2,140
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	2,144		2,140
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	0		0
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	0		0
Investments Held In Supplemental Retirement Plan [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	2,144	[1],[2]	2,140
Investments Held In Supplemental Retirement Plan [Member] | Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	2,144	[1],[2]	2,140	[1]
Investments Held In Supplemental Retirement Plan [Member] | Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	0	[1],[2]	0	[1]
Investments Held In Supplemental Retirement Plan [Member] | Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	$ 0	[1],[2]	$ 0	[1]

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

[2] These assets are included within prepaid expenses and other current assets and within other non-current assets.