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COMMITMENTS AND CONTINGENCIES - Additional Information (Details) - USD ($) $ in Millions			3 Months Ended		9 Months Ended
	Sep. 28, 2018	Jul. 27, 2018	Sep. 30, 2018	Jun. 30, 2018	Sep. 30, 2018
IBM Patent Litigation Case [Member]
Loss Contingencies [Line Items]
Awarded damages		$ 82.5
Litigation Settlement, Amount Awarded from Other Party	$ 57.5
Gain (Loss) Related to Litigation Settlement			$ 40.4	$ 75.0
Litigation Settlement, Expense			25.0
Finite-lived Intangible Assets Acquired			15.4
IBM Lawsuit
Loss Contingencies [Line Items]
Provision for loss contingency			$ 34.6		$ 75.0