Quarterly report pursuant to Section 13 or 15(d)

REVENUE FROM CONTRACTS WITH CUSTOMERS (Details)

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REVENUE FROM CONTRACTS WITH CUSTOMERS (Details) - USD ($)
$ in Millions
6 Months Ended
Jun. 30, 2020
Dec. 31, 2019
Disaggregation of Revenue [Line Items]    
Performance obligation period However, settlement statements for certain sales may be received for 30 to 90 days after the date production is delivered, and as a result, the Company is required to estimate the amount of production that was delivered to the purchaser and the price that will be received for the sale of the product  
Receivables from contracts with customers $ 65.6 $ 121.2
Maximum    
Disaggregation of Revenue [Line Items]    
Performance obligation period 30 days