GOODWILL AND INTANGIBLES - Summary of changes in carrying value of goodwill (Details) - USD ($) $ in Thousands	12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 327,864	$ 335,790
Foreign currency translation adjustments	46
Goodwill, ending balance	329,393	327,864
Hunter Fan Company
Goodwill [Roll Forward]
Goodwill from acquisitions		(7,926)
Pope
Goodwill [Roll Forward]
Goodwill from acquisitions	1,483
Consumer and Professional Products
Goodwill [Roll Forward]
Goodwill, beginning balance	136,611	144,537
Foreign currency translation adjustments	46
Goodwill, ending balance	138,140	136,611
Consumer and Professional Products | Hunter Fan Company
Goodwill [Roll Forward]
Goodwill from acquisitions		(7,926)
Consumer and Professional Products | Pope
Goodwill [Roll Forward]
Goodwill from acquisitions	1,483
Home and Building Products
Goodwill [Roll Forward]
Goodwill, beginning balance	191,253	191,253
Foreign currency translation adjustments	0
Goodwill, ending balance	191,253	191,253
Home and Building Products | Hunter Fan Company
Goodwill [Roll Forward]
Goodwill from acquisitions		$ 0
Home and Building Products | Pope
Goodwill [Roll Forward]
Goodwill from acquisitions	$ 0