DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES - Summary of Derivative Instruments (Details) - Not Designated as Hedging Instrument - Subsequent Event bbl in Thousands, MMBTU in Thousands	Mar. 09, 2018 MMBTU $ / MMBTU $ / bbl bbl
Oil \| Commodity Put Contract January Through December 2018, Contract One
Derivative [Line Items]
Daily volume (Bbls/d) \| bbl	1
Floor price (in usd per MMBtu or Bbl)	54
Oil \| Commodity Put Contract January Through December 2018, Contract Two
Derivative [Line Items]
Daily volume (Bbls/d) \| bbl	1
Floor price (in usd per MMBtu or Bbl)	45
Oil \| Commodity Fixed-Price Swap Contract, January Through December 2018
Derivative [Line Items]
Daily volume (Bbls/d) \| bbl	1
Swap price (in usd/bbl)	52.5
Oil \| Commodity Fixed-Price Swap Contract, January Through December 2018 Contract Two
Derivative [Line Items]
Daily volume (Bbls/d) \| bbl	1
Swap price (in usd/bbl)	51.98
Oil \| Commodity Fixed-Price Swap Contract, January Through December 2018 Contract Three
Derivative [Line Items]
Daily volume (Bbls/d) \| bbl	1
Swap price (in usd/bbl)	53.67
Oil \| Commodity Fixed-Price Swap Contract, January Through December 2019
Derivative [Line Items]
Daily volume (Bbls/d) \| bbl	1
Swap price (in usd/bbl)	51.00
Oil \| Commodity Fixed-Price Swap Contract, January Through December 2019 Contract Two
Derivative [Line Items]
Daily volume (Bbls/d) \| bbl	1
Swap price (in usd/bbl)	51.57
Oil \| Commodity Fixed-Price Swap Contract, January Through December 2019 Contract Three
Derivative [Line Items]
Daily volume (Bbls/d) \| bbl	2
Swap price (in usd/bbl)	56.13
Oil \| Commodity Collar Contract January Through December 2018
Derivative [Line Items]
Daily volume (Bbls/d) \| bbl	1
Floor price (in usd per MMBtu or Bbl)	45
Ceiling price (in usd per MMBtu or Bbl)	55.35
Natural Gas \| Commodity Collar Contract January Through December 2018
Derivative [Line Items]
Floor price (in usd per MMBtu or Bbl) \| $ / MMBTU	2.75
Daily Volume (MMBtus/d) \| MMBTU	6
Ceiling price (in usd per MMBtu or Bbl) \| $ / MMBTU	3.24

- Definition

The cap rate on a price risk derivative such as a cap or collar. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

+ References

No definition available.

+ Details

Name:	us-gaap_DerivativeCapPrice
Namespace Prefix:	us-gaap_
Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	instant

- Definition

Floor rate on a price risk derivative such as a floor or a collar. A payment or receipt is triggered if the market rate falls below the floor rate on the contract.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	us-types:perUnitItemType
Balance Type:	na
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- Definition

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.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Nominal energy measure used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:energyItemType
Balance Type:	na
Period Type:	duration

- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	num:volumeItemType
Balance Type:	na
Period Type:	duration

- Definition

Fixed price related to the price risk swap derivative.

+ References

No definition available.

+ Details

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Data Type:	us-types:perUnitItemType
Balance Type:	na
Period Type:	instant

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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