Schedule I - SiteOne Landscape Supply, Inc.’s Condensed Financial Statements - Share Repurchase Program (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 28, 2025	Dec. 29, 2024	Dec. 31, 2023
Class of Stock [Line Items]
Total Number of Shares Purchased (in shares)	816,888	366,443	90,000
Average Price Paid Per Share (in dollars per share)	$ 119.62	$ 140.97	$ 126.21
Amount Remaining	$ 214.3	$ 312.0	$ 363.6
Parent Company
Class of Stock [Line Items]
Total Number of Shares Purchased (in shares)	816,888	366,443	90,000
Average Price Paid Per Share (in dollars per share)	$ 119.62	$ 140.97	$ 126.21
Amount Remaining	$ 214.3	$ 312.0	$ 363.6

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

SiteOne Landscape Supply, Inc. 10-K