BUSINESS SEGMENTS - Depreciation, Amortization and Capital Expenditures (Details) - USD ($) $ in Thousands	3 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	$ 13,081	$ 12,590
Subtotal	12,944	15,216
CAPITAL EXPENDITURES	10,573	9,022
Subtotal	11,332	11,926
Discontinued Operations, Held-for-sale | Defense Electronics
Segment Reporting Information [Line Items]
Depreciation and amortization from Defense Electronics	0	2,676
Capital expenditure from Defense Electronics	853	2,904
Operating Segments
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	12,944	12,540
CAPITAL EXPENDITURES	10,479	9,022
Corporate
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	137	50
CAPITAL EXPENDITURES	94	0
Consumer and Professional Products | Operating Segments
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	8,606	8,199
CAPITAL EXPENDITURES	7,130	6,907
Home and Building Products | Operating Segments
Segment Reporting Information [Line Items]
DEPRECIATION and AMORTIZATION	4,338	4,341
CAPITAL EXPENDITURES	$ 3,349	$ 2,115