Leslie's, Inc. General form of registration statement for all companies including face-amount certificate companies

Business and Operations	3 Months Ended	12 Months Ended
Business and Operations	Jan. 02, 2021	Oct. 03, 2020
Accounting Policies [Abstract]
Business and Operations	Note 1—Business and Operations Leslie’s, Inc. (“Leslie’s,” “we,” “our,” “us,” “its,” or the “Company”) is the leading direct-to-consumer pool and spa care brand. We market and sell pool and spa supplies and related products and services, which primarily consist of maintenance items such as chemicals, equipment and parts, cleaning accessories, as well as safety, recreational, and fitness-related products. We currently market our products through 936 company-operated locations in 37 states and e-commerce websites.	Note 1—Business and Operations Leslie’s, Inc. (“Leslie’s,” “we,” “our,” “us,” “its,” or the “Company”) is the leading direct-to-consumer pool and spa care brand. We market and sell pool and spa supplies and related products and services, which primarily consist of maintenance items such as chemicals, equipment and parts, cleaning accessories, as well as safety, recreational, and fitness-related products. We currently market our products through 936 company-operated locations in 37 states and e-commerce websites.