DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Additional Information (Details) - Subsequent Event	May 07, 2018 counterparty
Fixed-Price Swaps And Costless Collars
Derivative Instruments, Gain (Loss) [Line Items]
Number of counterparties	4
Counterparty One and Counterparty Two
Derivative Instruments, Gain (Loss) [Line Items]
Percentage of counterparty contract volume	64.00%

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

No definition available.

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