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Other Retirement Plans (Details) (USD $) | 12 Months Ended
--- | ---
Sep. 30, 2012 | Sep. 25, 2011 | Sep. 26, 2010
Other Retirement Plans [Line Items] |  |  |
Cost Related to Other Retirement Plans | $ 3,533,000 | $ 2,666,000 | $ 1,894,000

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- Definition Cost Related to Other Retirement Plans- amounts recognized as expense during the year related to other retirement plans including defined contribution plans, deferred compensation arrangements, among others. + References No definition available. + Details
Name: | lee_CostRelatedToOtherRetirementPlans
Namespace Prefix: | lee_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | lee_OtherRetirementPlansLineItems
Namespace Prefix: | lee_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration