ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Equity [Abstract]
Foreign exchange gains (losses)	$ (4.5)	$ 5.6	$ (4.6)	$ 1.7

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