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Derivative Instruments - Schedule of Outstanding Commodity Derivative Instruments (Details) bbl in Thousands, MMBTU in Thousands, $ in Thousands | 6 Months Ended
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Jun. 30, 2017 USD ($) MMBTU $ / bbl $ / MMBTU bbl
Derivative [Line Items] |
Fair value asset | $ | $ 43,685
Oil [Member] | 2017 Swaps [Member] |
Derivative [Line Items] |
Total ntional amount of oil (in Bbls) | bbl | 3,843
Average swap price (in dollars per barrel) | 49.83
Fair value asset | $ | $ 13,211
Oil [Member] | 2017 Two Way Collars [Member] |
Derivative [Line Items] |
Total ntional amount of oil (in Bbls) | bbl | 1,464
Average floor price (in dollars per barrel) | 46.25
Average ceiling price (in dollars per barrel) | 54.37
Fair value asset | $ | $ 3,122
Oil [Member] | 2017 Three Way Collars [Member] |
Derivative [Line Items] |
Total ntional amount of oil (in Bbls) | bbl | 1,098
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 | $ | $ 1,816
Oil [Member] | 2018 Swaps [Member] |
Derivative [Line Items] |
Total ntional amount of oil (in Bbls) | bbl | 5,508
Average swap price (in dollars per barrel) | 51.95
Fair value asset | $ | $ 20,746
Oil [Member] | 2018 Two Way Collars [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 | $ | $ 1,799
Oil [Member] | 2018 Three Way Collars [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 | $ | $ 452
Oil [Member] | 2019 Swaps [Member] |
Derivative [Line Items] |
Total ntional amount of oil (in Bbls) | bbl | 434
Average swap price (in dollars per barrel) | 52.16
Fair value asset | $ | $ 1,365
Oil [Member] | 2019 Two-way Collars [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 | $ | $ 104
Natural Gas [Member] | 2017 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of natural gas (in MMBtu) | MMBTU | 3,680
Average swap price (in dollars per barrel) | $ / MMBTU | 3.32
Fair value asset | $ | $ 827
Natural Gas [Member] | 2018 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of natural gas (in MMBtu) | MMBTU | 5,475
Average swap price (in dollars per barrel) | $ / MMBTU | 3.04
Fair value asset | $ | $ 243

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