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Commitments (Details) Bcf in Thousands | 3 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 31, 2019 USD ($) MMBbls Bcf | Dec. 31, 2019 USD ($) MMBbls Bcf | Dec. 31, 2018 USD ($) | Dec. 31, 2017 USD ($)
Commitments and Contingencies |  |  |  |
Contractual obligation, due in 2020 | $ 102,550,000 | $ 102,550,000 |  |
Contractual obligation, due in 2021 | 94,494,000 | 94,494,000 |  |
Contractual obligation, due in 2022 | 73,826,000 | 73,826,000 |  |
Contractual obligation, due in 2023 | 41,661,000 | 41,661,000 |  |
Contractual obligation, due in 2024 | 12,349,000 | 12,349,000 |  |
Contractual obligation, due thereafter | 24,697,000 | 24,697,000 |  |
Contractual obligation | 349,577,000 | $ 349,577,000 |  |
Loss on drilling and completion contract terminations | $ 18,200,000 |  |  |
Crude oil pipeline commitment [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Oil and gas delivery commitments, remaining minimum contractual volumes | MMBbls | 24 | 24 |  |
Natural gas pipeline commitment [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Oil and gas delivery commitments, remaining minimum contractual volumes | Bcf | 424 | 424 |  |
Crude Oil Pipeline Commitment Excluded from Remaining Deficiency Payment Amount [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Oil and gas delivery commitments, remaining minimum contractual volumes | MMBbls | 16.5 | 16.5 |  |
Drilling Rig Leasing Contracts [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Contractual obligation | $ 34,100,000 | $ 34,100,000 |  |
Early Termination Penalty for Rig Contract Cancellation | 26,300,000 | 26,300,000 |  |
PipelineCommitments [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Contractual obligation | 218,500,000 | 218,500,000 |  |
Office Space Leases [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Contractual obligation | 28,300,000 | 28,300,000 |  |
Operating leases, rent expense, net of sublease income |  | 5,500,000 | $ 4,500,000 | $ 4,800,000
Electricity Purchase Agreement [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Contractual obligation | 53,200,000 | 53,200,000 |  |
Other miscellaneous contracts and leases [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Contractual obligation | $ 15,500,000 | $ 15,500,000 |  |
Water pipeline commitment [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Water delivery commitments, remaining minimum contractual volumes | MMBbls | 18 | 18 |  |
Minimum [Member] | Completion Service Commitment [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Potential Penalty for not Meeting Minimum Completion Service Arrangement Requirements | $ 0 | $ 0 |  |
Minimum [Member] | Sand Sourcing Commitment [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Potential Penalty for not Meeting Minimum Sand Sourcing Requirements | 0 | 0 |  |
Maximum [Member] | Completion Service Commitment [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Potential Penalty for not Meeting Minimum Completion Service Arrangement Requirements | 13,400,000 | 13,400,000 |  |
Maximum [Member] | Sand Sourcing Commitment [Member] |  |  |  |
Commitments and Contingencies |  |  |  |
Potential Penalty for not Meeting Minimum Sand Sourcing Requirements | $ 10,000,000.0 | $ 10,000,000.0 |  |

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