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BALANCE SHEET DETAILS - Additional Information (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Balance Sheet Related Disclosures [Abstract]      
Write off of fully depreciated property, plant and equipment $ 0.1 $ 3.3 $ 0.6
Accumulated depreciation related to derecognized amount of property, plant and equipment $ 0.1 $ 3.3 $ 0.6