Acquisitions and Divestitures - Pro Forma Information (Details) - Green Garden Products - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Mar. 27, 2021	Mar. 28, 2020	Mar. 27, 2021	Mar. 28, 2020
Business Acquisition [Line Items]
Net sales	$ 967,430	$ 758,589	$ 1,581,775	$ 1,252,587
Net income	$ 97,049	$ 54,545	$ 103,228	$ 43,691
Diluted (in dollars per share)	$ 1.76	$ 0.99	$ 1.88	$ 0.79

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The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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