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v3.22.4

SUPPLEMENTAL CASH FLOW INFORMATION (Tables) | 12 Months Ended
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Dec. 31, 2022
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract] |
Schedule of Cash Flow, Supplemental Disclosures | Supplemental cash flow information and non-cash investing and financing activities were as follows:
| For the year ended December 31,
(in thousands) | 2022 |  | 2021 |  | 2020
Supplemental cash flow information: |  |  |  |  |
Cash paid for interest | $ | 2,096 |  |  | $ | 1,204 |  |  | $ | 3,089 |
Cash payments related to income taxes, net | $ | 18,860 |  |  | $ | 4,172 |  |  | $ | 255 |
Supplemental non-cash investing and financing activities: |  |  |  |  |
Property, plant and equipment acquired with equipment notes | $ | — |  |  | $ | 9,407 |  |  | $ | 1,216 |
Property, plant and equipment purchased but not yet paid | $ | 34,569 |  |  | $ | 14,082 |  |  | $ | 4,054 |
SNR Mineral Rights Acquisition | $ | — |  |  | $ | — |  |  | $ | 324,125 |
Revenue recognized in exchange for debt principal reduction | $ | 13,566 |  |  | $ | 54,802 |  |  | $ | 21,312 |
Paycheck Protection Loan forgiveness | $ | — |  |  | $ | 3,401 |  |  | $ | — |
Decrease in estimates of asset retirement costs | $ | 10,395 |  |  | $ | 8,713 |  |  | $ | — |
Operating right-of-use assets obtained in exchange for lease liabilities | $ | 168 |  |  | $ | — |  |  | $ | 2,932 |
Finance right-of-use assets obtained in exchange for lease liabilities | $ | 42 |  |  | $ | 88 |  |  | $ | 724 |

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- Definition Tabular disclosure of supplemental cash flow information for the periods presented. + References No definition available. + Details
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