REVENUE RECOGNITION - Narrative (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2024	Apr. 02, 2023	Mar. 31, 2024	Apr. 02, 2023	Sep. 30, 2023
Concentration Risk [Line Items]
Net sales	$ 718.5	$ 729.2	$ 1,410.7	$ 1,442.5
Allowance for product returns	15.3		15.3		$ 12.8
Licensing
Concentration Risk [Line Items]
Net sales	4.7	5.0	9.4	10.2
HPC
Concentration Risk [Line Items]
Net sales	267.9	279.2	611.2	643.6
HPC | Licensing
Concentration Risk [Line Items]
Net sales	1.8	1.9	3.6	4.3
Black and Decker | HPC | Licensing
Concentration Risk [Line Items]
Net sales	$ 78.6	$ 85.1	$ 172.5	$ 171.9
Customer Concentration Risk | Two Customers | Net Sales
Concentration Risk [Line Items]
Concentration risk percentage	33.50%	33.50%	35.80%	34.80%
Product Concentration Risk | Revenue from Contract with Customer, Product and Service | Licensing
Concentration Risk [Line Items]
Concentration risk percentage	10.90%	11.70%	12.20%	11.90%