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FAIR VALUE MEASUREMENTS (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Assets |  |
Asset transfers between levels | $ 0 |
Liabilities |  |
Liability transfers between levels | 0 |
Recurring | Total |  |
Assets |  |
Receivables from derivative contracts | 19,430 | $ 69,717
Liabilities |  |
Liabilities from derivative contracts | 8,454 | 12,907
Recurring | Level 2 |  |
Assets |  |
Receivables from derivative contracts | 19,430 | 69,717
Liabilities |  |
Liabilities from derivative contracts | $ 8,454 | $ 12,907

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