v2.3.0.15

Fair Value Measurements (Schedule Of Financial Liabilities Carried At Fair Value) (Details) (USD $) In Thousands	Sep. 30, 2011		Sep. 24, 2010
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	$ 1,891		$ 2,200
Investments Held In Supplemental Retirement Plan [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	1,891	[1]	2,200	[1]
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	1,891	[1]	2,200	[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				[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				[1]
Level 1 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value	1,891		2,200
Level 2 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value
Level 3 [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Financial liabilities carried at fair value
[1] These liabilities are included within accrued compensation and benefits and other noncurrent liabilities

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ Details

Name:	us-gaap_FairValueBalanceSheetGroupingFinancialStatementCaptionsLineItems
Namespace Prefix:	us-gaap
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

This element represents the aggregate of the liabilities reported on the balance sheet at period end measured at fair value by the entity. This element is intended to be used in connection with the fair value disclosures required in the footnote disclosures to the financial statements.

+ Details

Name:	us-gaap_LiabilitiesFairValueDisclosure
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant