Pay vs Performance Disclosure - USD ($) $ in Thousands	3 Months Ended
Pay vs Performance Disclosure - USD ($) $ in Thousands	Jan. 03, 2026	Dec. 28, 2024
Pay vs Performance Disclosure
Net Income (Loss)	$ (82,971)	$ (44,564)

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

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Leslie's, Inc. 10-Q