ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Equity [Abstract]
Foreign exchange gains (losses)	$ 1.9	$ (0.1)	$ (0.1)	$ (3.9)

Foreign Exchange Gains (Losses) From Translation Of Actuarial Losses Prior Service Credit And Transition Obligation

No definition available.

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration