Commitments and Contingencies |
3 Months Ended |
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Mar. 31, 2018 | |
| Commitments And Contingencies Disclosure [Abstract] | |
| Commitments and Contingencies | 6. Commitments and Contingencies Our contractual obligations include long-term debt, operating lease obligations, asset retirement obligations and employment agreements with our executive officers. Since December 31, 2017, there have been no material changes to our contractual obligations. We are involved in various legal and regulatory proceedings arising in the normal course of business. While we cannot predict the outcome of these proceedings with certainty, we do not believe that an adverse result in any pending legal or regulatory proceeding, individually or in the aggregate, would be material to our consolidated financial condition or cash flows.
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