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Derivative Instruments - Schedule of Outstanding Commodity Derivative Instruments (Details) bbl in Thousands, MMBTU in Thousands, $ in Thousands | 9 Months Ended
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Sep. 30, 2017 USD ($) MMBTU $ / bbl $ / MMBTU bbl
Derivative [Line Items] |
Fair value asset | $ | $ (18,720)
Oil [Member] | 2017 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of oil (in Bbls) | bbl | 2,428
Average swap price (in dollars per barrel) | 49.98
Fair value asset | $ | $ (3,220)
Oil [Member] | 2017 Two Way Collars [Member] |
Derivative [Line Items] |
Total notional amount of oil (in Bbls) | bbl | 728
Average floor price (in dollars per barrel) | 46.25
Average ceiling price (in dollars per barrel) | 54.37
Fair value asset | $ | $ (576)
Oil [Member] | 2017 Three Way Collars [Member] |
Derivative [Line Items] |
Total notional amount of oil (in Bbls) | bbl | 546
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 | $ | $ 42
Oil [Member] | 2018 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of oil (in Bbls) | bbl | 12,951
Average swap price (in dollars per barrel) | 50.81
Fair value asset | $ | $ (13,746)
Oil [Member] | 2018 Two Way Collars [Member] |
Derivative [Line Items] |
Total notional amount of oil (in Bbls) | bbl | 1,250
Average floor price (in dollars per barrel) | 48.19
Average ceiling price (in dollars per barrel) | 53.33
Fair value asset | $ | $ (927)
Oil [Member] | 2018 Three Way Collars [Member] |
Derivative [Line Items] |
Total notional 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 | $ | $ 51
Oil [Member] | 2019 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of oil (in Bbls) | bbl | 3,423
Average swap price (in dollars per barrel) | 50.83
Fair value asset | $ | $ (846)
Oil [Member] | 2019 Two-way Collars [Member] |
Derivative [Line Items] |
Total notional amount of oil (in Bbls) | bbl | 93
Average floor price (in dollars per barrel) | 48.67
Average ceiling price (in dollars per barrel) | 53.07
Fair value asset | $ | $ (25)
Oil [Member] | 2020 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of oil (in Bbls) | bbl | 217
Average swap price (in dollars per barrel) | $ / MMBTU | 50.82
Fair value asset | $ | $ 28
Natural Gas [Member] | 2018 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of natural gas (in MMBtu) | MMBTU | 2,024
Average swap price (in dollars per barrel) | $ / MMBTU | 3.30
Fair value asset | $ | $ 502
Natural Gas [Member] | 2019 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of natural gas (in MMBtu) | MMBTU | 6,205
Average swap price (in dollars per barrel) | $ / MMBTU | 3.05
Fair value asset | $ | $ (3)

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