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Derivative Instruments - Schedule of Outstanding Commodity Derivative Instruments (Details) bbl in Thousands, MMBTU in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017 USD ($) MMBTU $ / bbl $ / MMBTU bbl
Oil [Member]
Derivative [Line Items]
Fair value asset (liability) | $	$ (7,786)
2017 Swaps [Member] | Oil [Member]
Derivative [Line Items]
Total ntional amount of oil (in Bbls) | bbl	5,225
Average swap price (in dollars per barrel)	49.60
Fair value asset (liability) | $	$ (9,309)
2017 Swaps [Member] | Natural Gas [Member]
Derivative [Line Items]
Total notional amount of natural gas (in MMBtu) | MMBTU	4,675
Average swap price (in dollars per barrel) | $ / MMBTU	3.30
Fair value asset (liability) | $	$ (55)
2017 Two Way Collars [Member] | Oil [Member]
Derivative [Line Items]
Total ntional amount of oil (in Bbls) | bbl	2,200
Average floor price (in dollars per barrel)	46.25
Average ceiling price (in dollars per barrel)	54.37
Fair value asset (liability) | $	$ (1,707)
2017 Three Way Collars [Member] | Oil [Member]
Derivative [Line Items]
Total ntional amount of oil (in Bbls) | bbl	1,650
Average sub-floor price (in dollars per barrel)	31.67
Average floor price (in dollars per barrel)	45.83
Average ceiling price (in dollars per barrel)	59.94
Fair value asset (liability) | $	$ 562
2018 Swaps [Member] | Oil [Member]
Derivative [Line Items]
Total ntional amount of oil (in Bbls) | bbl	2,440
Average swap price (in dollars per barrel)	52.93
Fair value asset (liability) | $	$ 2,375
2018 Swaps [Member] | Natural Gas [Member]
Derivative [Line Items]
Total notional amount of natural gas (in MMBtu) | MMBTU	3,650
Average swap price (in dollars per barrel) | $ / MMBTU	3.00
Fair value asset (liability) | $	$ (121)
2018 Two Way Collars [Member] | Oil [Member]
Derivative [Line Items]
Total ntional amount of oil (in Bbls) | bbl	582
Average floor price (in dollars per barrel)	48.40
Average ceiling price (in dollars per barrel)	55.13
Fair value asset (liability) | $	$ 28
2018 Three Way Collars [Member] | Oil [Member]
Derivative [Line Items]
Total ntional amount of oil (in Bbls) | bbl	186
Average sub-floor price (in dollars per barrel)	31.67
Average floor price (in dollars per barrel)	45.83
Average ceiling price (in dollars per barrel)	59.94
Fair value asset (liability) | $	$ 58
2019 Swaps [Member]
Derivative [Line Items]
Average swap price (in dollars per barrel)	53.88
2019 Swaps [Member] | Oil [Member]
Derivative [Line Items]
Total ntional amount of oil (in Bbls) | bbl	155
Fair value asset (liability) | $	$ 351
2019 Two-way Collars [Member] | Oil [Member]
Derivative [Line Items]
Total ntional amount of oil (in Bbls) | bbl	31
Average floor price (in dollars per barrel)	50.00
Average ceiling price (in dollars per barrel)	55.70
Fair value asset (liability) | $	$ 32

X

- Definition

Derivative, Sub-Floor Price

+ References

No definition available.

+ Details

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X

- Definition

The average cap rate on a group of price risk derivatives such as caps or collars. A payment or receipt is triggered if the market rate exceeds the cap rate on the contract.

+ References

No definition available.

+ Details

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X

- Definition

The average floor rate on a group of price risk derivatives such as floors or collars. 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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X

- Definition

Fair value of the assets less the liabilities of a derivative or group of derivatives.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41271-113958

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6945355&loc=d3e41228-113958

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 10
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13433-108611

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13495-108611

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X

- 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.

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X

- Definition

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

+ References

No definition available.

+ Details

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Data Type:	num:energyItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Nominal volume used to calculate payments on a derivative instrument.

+ References

No definition available.

+ Details

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X

- Definition

Average fixed price related to the group of price risk swap derivatives.

+ References

No definition available.

+ Details

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