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SUBSEQUENT EVENTS (Details) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended
Apr. 30, 2020
Dec. 31, 2019
May 15, 2020
Revolving credit facility | Forecast      
Subsequent Event [Line Items]      
Decrease in current borrowing capacity     $ 580.0
Remaining borrowing capacity subject to redetermination     $ 406.5
Cash Distribution      
Subsequent Event [Line Items]      
Cash distributions, amount per common unit (in USD per unit)   $ 0.45  
Cash Distribution | Subsequent Event      
Subsequent Event [Line Items]      
Cash distributions, amount per common unit (in USD per unit) $ 0.10    
Percentage of cash available 25.00%