FINANCIAL DERIVATIVES AND HEDGING ACTIVITIES - Summary of Derivatives at Fair Value (Details) - Derivatives designated as cash flow hedges - Designated as Hedging Instrument - USD ($) $ in Millions	Apr. 03, 2020	Sep. 27, 2019
Interest Rate Swap Contracts
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	$ (3.6)	$ (0.5)
Cross Currency Swap Contracts
Derivative [Line Items]
Derivative assets fair value, gross	4.1	0.0
Accrued liabilities and other current liabilities | Interest Rate Swap Contracts
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	(3.1)	0.0
Other long-term liabilities | Interest Rate Swap Contracts
Derivative [Line Items]
Derivative Liability, Fair Value, Gross Liability	(0.5)	(0.5)
Other current assets | Cross Currency Swap Contracts
Derivative [Line Items]
Derivative assets fair value, gross	1.3	0.0
Other non-current assets | Cross Currency Swap Contracts
Derivative [Line Items]
Derivative assets fair value, gross	$ 2.8	$ 0.0