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INTANGIBLE ASSETS AND GOODWILL - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Jun. 30, 2020
Dec. 31, 2019
Indefinite-lived Intangible Assets [Line Items]        
Impairment charge     $ 4,143,000 $ 0
Goodwill, impairment loss   $ 537,400,000 $ 0 $ 537,353,000
Goodwill, impairment loss, net of tax   519,600,000    
Licensing Agreements        
Indefinite-lived Intangible Assets [Line Items]        
Impairment charge $ 4,100,000 $ 0    
Impairment charges, net of tax $ 3,000,000.0