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Derivative Instruments - Schedule of Outstanding Commodity Derivative Instruments (Details) MMBTU in Thousands, $ in Thousands | 9 Months Ended
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Sep. 30, 2016 USD ($) MBbls MMBTU $ / bbl
Oil [Member] |
Derivative [Line Items] |
Fair value asset (liability) | $ | $ (15,727)
Oil [Member] | 2016 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of oil (in MBbls) | MBbls | 2,973
Average swap price (in dollars per barrel) | 49.18
Fair value asset (liability) | $ | $ 4,765
Oil [Member] | 2017 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of oil (in MBbls) | MBbls | 5,059
Average swap price (in dollars per barrel) | 48.04
Fair value asset (liability) | $ | $ (14,742)
Oil [Member] | 2017 Two Way Collars [Member] |
Derivative [Line Items] |
Total notional amount of oil (in MBbls) | MBbls | 1,002
Average floor price (in dollars per barrel) | 41.67
Average ceiling price (in dollars per barrel) | 50.58
Fair value asset (liability) | $ | $ (4,092)
Oil [Member] | 2017 Three Way Collars [Member] |
Derivative [Line Items] |
Total notional amount of oil (in MBbls) | MBbls | 1,670
Average sub-floor price (in dollars per barrel) | 30.00
Average floor price (in dollars per barrel) | 45.00
Average ceiling price (in dollars per barrel) | 60.11
Fair value asset (liability) | $ | $ 241
Oil [Member] | 2018 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of oil (in MBbls) | MBbls | 522
Average swap price (in dollars per barrel) | 50.07
Fair value asset (liability) | $ | $ (1,349)
Oil [Member] | 2018 Two Way Collars [Member] |
Derivative [Line Items] |
Total notional amount of oil (in MBbls) | MBbls | 93
Average floor price (in dollars per barrel) | 41.67
Average ceiling price (in dollars per barrel) | 50.58
Fair value asset (liability) | $ | $ (471)
Oil [Member] | 2018 Three Way Collars [Member] |
Derivative [Line Items] |
Total notional amount of oil (in MBbls) | MBbls | 155
Average sub-floor price (in dollars per barrel) | 30.00
Average floor price (in dollars per barrel) | 45.00
Average ceiling price (in dollars per barrel) | 60.11
Fair value asset (liability) | $ | $ (122)
Natural Gas [Member] | 2017 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of natural gas (in Btu) | MMBTU | 1,336
Average swap price (in dollars per barrel) | 3.12
Fair value asset (liability) | $ | $ 52
Natural Gas [Member] | 2018 Swaps [Member] |
Derivative [Line Items] |
Total notional amount of natural gas (in Btu) | MMBTU | 124
Average swap price (in dollars per barrel) | 3.12
Fair value asset (liability) | $ | $ (9)

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