GOODWILL AND INTANGIBLES - Summary of changes in carrying value of goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 426,148	$ 424,098
Goodwill from acquisitions	258,536	784
Accumulated Impairment Charges	(342,027)
Foreign currency translation adjustments	(6,867)	1,266
Goodwill, ending balance	335,790	426,148
Consumer and Professional Products
Goodwill [Roll Forward]
Goodwill, beginning balance	234,895	232,845
Goodwill from acquisitions	258,536	784
Accumulated Impairment Charges	(342,027)
Foreign currency translation adjustments	(6,867)	1,266
Goodwill, ending balance	144,537	234,895
Home and Building Products
Goodwill [Roll Forward]
Goodwill, beginning balance	191,253	191,253
Goodwill from acquisitions	0	0
Accumulated Impairment Charges	0
Foreign currency translation adjustments	0	0
Goodwill, ending balance	$ 191,253	$ 191,253