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Other Accrued Liabilities (Tables) | 12 Months Ended
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Dec. 31, 2019
Other Liabilities Disclosure [Abstract] |
Schedule of Accrued Liabilities |
|  | December 31,
|  | 2019 |  | 2018
Royalties |  | $ | 74,061 |  |  | $ | 92,005 |
Accrued Interest |  | 30,862 |  |  | 26,333 |
Short-Term Incentive Compensation |  | 21,030 |  |  | 20,482 |
Transportation Charges |  | 16,533 |  |  | 19,661 |
Deferred Revenue |  | 13,964 |  |  | 17,693 |
Accrued Other Taxes |  | 9,115 |  |  | 7,300 |
Accrued Payroll & Benefits |  | 6,248 |  |  | 6,533 |
Other |  | 38,105 |  |  | 31,851 |
Current Portion of Long-Term Liabilities: |  |  |  |
Asset Retirement Obligations |  | 5,076 |  |  | 1,075 |
Salary Retirement |  | 1,587 |  |  | 1,578 |
Total Other Accrued Liabilities |  | $ | 216,581 |  |  | $ | 224,511 |

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