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ACQUISITIONS AND INVESTMENTS - Luxx Lighting (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	Dec. 30, 2021	Apr. 01, 2023	Sep. 30, 2022	Apr. 02, 2022
Business Acquisition [Line Items]
Common shares stated value (USD per share)		$ 0.01	$ 0.01	$ 0.01
Goodwill		$ 254.3	$ 254.0	$ 688.1
Hawthorne | Luxx Lighting, Inc.
Business Acquisition [Line Items]
Consideration for the acquisition	$ 213.2
Number of shares issued in acquisition	0.1
Fair value of shares issued in acquisition	$ 21.0
Inventory and accounts receivable acquired	32.8
Current assets	5.7
Liabilities	24.2
Finite-lived intangible assets acquired	47.3
Goodwill	$ 151.6
Hawthorne | Luxx Lighting, Inc. | Minimum
Business Acquisition [Line Items]
Intangible assets amortization period	5 years
Hawthorne | Luxx Lighting, Inc. | Maximum
Business Acquisition [Line Items]
Intangible assets amortization period	25 years

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