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COMMITMENTS AND CONTINGENCIES (Details)
$ in Millions
1 Months Ended
Jun. 04, 2018
USD ($)
employee
Aug. 31, 2019
USD ($)
Oct. 31, 2019
USD ($)
Sep. 30, 2019
USD ($)
Dec. 31, 2018
USD ($)
Long-term Purchase Commitment [Line Items]          
Litigation settlement   $ 0.7      
Loss contingency accrual       $ 0.0 $ 0.0
Other Commitment for Periods 2013 through 2018 [Member]          
Long-term Purchase Commitment [Line Items]          
Additional liability       $ 5.0  
Services Agreement          
Long-term Purchase Commitment [Line Items]          
Number of full-time employees not included in the services agreement | employee 5        
Service agreement acquisition and/or divestiture minimum amount $ 5.0        
Subsequent Event          
Long-term Purchase Commitment [Line Items]          
Loss contingency, estimate of possible loss     $ 4.1