PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Apr. 03, 2022	Sep. 30, 2021
Property, Plant and Equipment [Line Items]
Finance leases	$ 145.0	$ 146.1
Property, plant and equipment	647.9	641.4
Accumulated depreciation	(391.5)	(381.2)
Property, plant and equipment, net	256.4	260.2
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	77.3	83.5
Machinery, equipment and other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	385.9	383.0
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 39.7	$ 28.8