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Prepaid and Other Current Assets (Tables) | 12 Months Ended
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Dec. 31, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract] |
Schedule of Other Current Assets | Prepaid and other current assets at December 31, 2018 and 2017 consist of the following (in thousands):
| December 31,
| 2018 |  | 2017
Collateral posted with broker for derivative instruments (1) | $ | 2,759 |  |  | $ | 215 |
Prepaid insurance | 7,727 |  |  | 7,547 |
Derivative assets | 5,164 |  |  | 4,296 |
Other | 12,720 |  |  | 5,221 |
Total | $ | 28,370 |  |  | $ | 17,279 |
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(1) | Our cash margin that is required as collateral deposits on our commodity derivatives cannot be offset against the fair value of open contracts except in the event of default. Please read Note 13—Derivatives for further information.

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