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INCOME TAXES - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Income Tax Disclosure [Abstract]        
Effective tax rates (as a percent) (325.50%) 18.10% (61.50%) 9.30%
Deferred tax benefit on impairment charge       $ 125.5