Quarterly report [Sections 13 or 15(d)]

Impairments, Store Closing, and Other Costs - Schedule of Charges Included in Consolidated Statements of Operations (Details)

v3.26.1
Impairments, Store Closing, and Other Costs - Schedule of Charges Included in Consolidated Statements of Operations (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended 9 Months Ended
Jul. 04, 2026
Jun. 28, 2025
Mar. 29, 2025
Mar. 29, 2025
Jul. 04, 2026
Jun. 28, 2025
Long-Lived Asset, to be Disposed of Other than by Sale, Impairment [Line Items]            
Non-cash inventory impairment         $ 5,363 $ 0
Non-cash property and equipment impairments $ 0 $ 0     $ 5,353 $ 0
Long-Lived Asset, Held and Used, Impairment Loss, Statement of Income or Comprehensive Income [Extensible Enumeration] Impairment Charges Related to Goodwill or Long Lived Assets Impairment Charges Related to Goodwill or Long Lived Assets     Impairment Charges Related to Goodwill or Long Lived Assets Impairment Charges Related to Goodwill or Long Lived Assets
Total $ (148) $ 0     $ 17,871 $ 0
Location, Statement of Income, Balance [Axis]: us-gaap:CostOfGoodsAndServicesSold            
Long-Lived Asset, to be Disposed of Other than by Sale, Impairment [Line Items]            
Non-cash inventory impairment (149) [1] 0 [1] $ 0 $ 0 5,363 [1] 0 [1]
Location, Statement of Income, Balance [Axis]: us-gaap:SellingGeneralAndAdministrativeExpense            
Long-Lived Asset, to be Disposed of Other than by Sale, Impairment [Line Items]            
Wind down and other costs [2] 709 0     4,242 0
Location, Statement of Income, Balance [Axis]: lesl:ImpairmentChargesRelatedToGoodwillOrLongLivedAssets            
Long-Lived Asset, to be Disposed of Other than by Sale, Impairment [Line Items]            
Non-cash lease impairments [3] $ (708) $ 0     $ 2,913 $ 0
[1] The three months ended July 4, 2026 includes inventory reserve adjustments of $(0.1) million. For the nine months ended July 4, 2026 the total inventory impairment was $5.4 million.
[2] The three months ended July 4, 2026 includes $0.5 million of construction and other costs related to store closures, and $0.2 million in ongoing occupancy costs. For the nine months ended July 4, 2026 includes $2.8 million of construction and other costs related to store closures, $0.6 million in severance costs, and $0.8 million in ongoing occupancy costs.
[3] The three months ended July 4, 2026 includes $(0.7) million of non-cash gains due to lease terminations on stores that were closed and impaired during the first quarter of 2026. For the nine months ended July 4, 2026 includes a $4.8 million right-of-use asset impairment and $(1.9) million non-cash lease gains all relating to the store and distribution center closures that occurred during the first quarter of 2026.