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Commitments and Contingent Liabilities - Narrative (Details) $ in Millions | 12 Months Ended
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Sep. 24, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract] |
Construction and equipment, purchase commitments | $ 3.7

X
- Definition Represents purchase commitments for construction and equipment. + References No definition available. + Details
Name: | lee_ConstructionAndEquipmentPurchaseCommitments
Namespace Prefix: | lee_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_CommitmentsAndContingenciesDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration