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ACQUISITIONS AND INVESTMENTS - True Liberty Bags (Details) - USD ($) $ in Millions	Dec. 23, 2021	Jan. 01, 2022	Sep. 30, 2021	Jan. 02, 2021
Business Acquisition [Line Items]
Goodwill		$ 681.5	$ 605.2	$ 548.9
Hawthorne | True Liberty Bags
Business Acquisition [Line Items]
Consideration for the acquisition	$ 10.0
Inventory and accounts receivable acquired	1.2
Noncurrent assets acquired	0.1
Liabilities	1.7
Finite-lived intangible assets acquired	5.8
Goodwill	$ 4.6
Hawthorne | True Liberty Bags | Minimum
Business Acquisition [Line Items]
Intangible assets amortization period	15 years
Hawthorne | True Liberty Bags | Maximum
Business Acquisition [Line Items]
Intangible assets amortization period	20 years

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