Commitments & Contingencies - Additional Information (Details) - USD ($) $ in Millions	Jan. 03, 2026	Oct. 04, 2025	Dec. 28, 2024
Workers' Compensation Insurance Program
Loss Contingencies [Line Items]
Standby letters of credit outstanding amount	$ 11.1	$ 11.7	$ 11.9
General Liability Insurance Program \| Maximum
Loss Contingencies [Line Items]
Self insurance retention amount	$ 0.4

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.

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+ Details

Leslie's, Inc. 10-Q