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Business Segment Data - Class of Similar Products Which Represented Approximately 10% or More of Company's Consolidated Net Sales (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023
Revenue from External Customer [Line Items]
Revenues	$ 3,129.1	$ 3,200.5	$ 3,310.1
Other garden products
Revenue from External Customer [Line Items]
Revenues	808.2	832.9	832.2
Other pet products
Revenue from External Customer [Line Items]
Revenues	602.6	635.0	699.4
Other manufacturers' products
Revenue from External Customer [Line Items]
Revenues	664.7	705.6	734.9
Dog & cat products
Revenue from External Customer [Line Items]
Revenues	592.8	600.6	568.6
Wild bird
Revenue from External Customer [Line Items]
Revenues	$ 460.8	$ 426.4	$ 475.0

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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