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v3.22.2.2

Accounts Payable and Accrued Expenses (Additional Information) (Details) - USD ($) $ in Millions | Oct. 01, 2022 | Oct. 02, 2021 | Oct. 03, 2020
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Payables and Accruals [Abstract] |  |  |
Capital expenditures included in other accrued liabilities | $ 1.1 | $ 1.5 | $ 1.1

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- Definition Capital expenditures included in other accrued liabilities current. + References No definition available. + Details
Name: | lesl_CapitalExpendituresIncludedInOtherAccruedLiabilitiesCurrent
Namespace Prefix: | lesl_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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