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Investments (Tables) | 9 Months Ended
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Sep. 30, 2020
Investments, All Other Investments [Abstract] |
Investments | The following table presents the carrying value of our investments (in thousands) as of:
| September 30, 2020 | December 31, 2019
Investment in privately held oil and gas company | $ | 1,500 |  | $ | 8,359 |
Cash surrender value of life insurance contracts | 13,467 |  | 13,056 |
Other investments | 692 |  | 514 |
Total investments | $ | 15,659 |  | $ | 21,929 |

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