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PROPERTY, PLANT AND EQUIPMENT - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Jun. 29, 2025	Jun. 30, 2024	Jun. 29, 2025	Jun. 30, 2024	Sep. 30, 2024
Property, Plant and Equipment [Line Items]
Finance leases	$ 133.0		$ 133.0		$ 141.4
Property, plant and equipment	752.4		752.4		734.7
Accumulated depreciation	(502.1)		(502.1)		(468.1)
Property, plant and equipment, net	250.3		250.3		266.6
Depreciation expense	14.6	$ 14.1	42.6	$ 42.9
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	90.7		90.7		88.2
Machinery, equipment and other
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	349.9		349.9		337.4
Computer software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	154.7		154.7		142.6
Construction in progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 24.1		$ 24.1		$ 25.1