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RELATED PARTY TRANSACTIONS - Narrative (Details) - USD ($)
$ in Millions
1 Months Ended 3 Months Ended
Jan. 31, 2019
Feb. 28, 2019
Mar. 31, 2020
May 22, 2019
Related Party Transaction [Line Items]        
Notes receivable, noncurrent       $ 3.5
Notes receivable, maximum loan commitment available for future issuance, noncurrent       $ 10.0
Notes receivable, noncurrent, annual interest rate       12.00%
Interest income, related party     $ 0.1  
Redeemable noncontrolling interest, equity, preferred, redemption value   $ 4.5    
Preferred yield per year   6.00%    
Preferred stock, percentage owned   83.30%    
Income (loss) from equity method investments     $ 0.2  
Chief Executive Officer And Chairman        
Related Party Transaction [Line Items]        
Percentage of ownership before transaction 80.00%