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GOODWILL AND OTHER INTANGIBLES - Schedule of Changes in Carrying Value of Goodwill (Details) $ in Thousands	6 Months Ended
	Mar. 31, 2025 USD ($)
Goodwill [Line Items]
Goodwill, beginning balance	$ 329,393
Goodwill from acquisitions	230
Foreign currency translation adjustments	(94)
Goodwill, ending balance	329,529
Home and Building Products
Goodwill [Line Items]
Goodwill, beginning balance	191,253
Goodwill from acquisitions	0
Foreign currency translation adjustments	0
Goodwill, ending balance	191,253
Consumer and Professional Products
Goodwill [Line Items]
Goodwill, beginning balance	138,140
Goodwill from acquisitions	230
Foreign currency translation adjustments	(94)
Goodwill, ending balance	$ 138,276

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