BUSINESS SEGMENTS - Summary of Segment Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Sep. 30, 2021
Segment Reporting Information [Line Items]
Continuing assets	$ 2,317,271	$ 2,327,242
Discontinued operations	3,958	4,029
Total Assets	2,582,743	2,604,685
Discontinued Operations, Not Held-for-sale
Segment Reporting Information [Line Items]
Discontinued operations	3,958	4,029
Discontinued Operations, Held-for-sale
Segment Reporting Information [Line Items]
Discontinued operations	261,514	273,414
Operating Segments
Segment Reporting Information [Line Items]
Continuing assets	2,129,536	2,044,040
Operating Segments | Consumer and Professional Products
Segment Reporting Information [Line Items]
Continuing assets	1,443,527	1,377,618
Operating Segments | Home and Building Products
Segment Reporting Information [Line Items]
Continuing assets	686,009	666,422
Corporate
Segment Reporting Information [Line Items]
Continuing assets	$ 187,735	$ 283,202