PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Jan. 02, 2022	Sep. 30, 2021
Property, Plant and Equipment [Line Items]
Finance leases	$ 145.9	$ 146.1
Property, plant and equipment	650.5	641.4
Accumulated depreciation	(390.1)	(381.2)
Property, plant and equipment, net	260.4	260.2
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	83.3	83.5
Machinery, equipment and other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	384.4	383.0
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 36.9	$ 28.8