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ASSET RETIREMENT OBLIGATIONS (Tables) | 6 Months Ended
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Jun. 30, 2021
Asset Retirement Obligation [Abstract] |
Schedule of Asset Retirement Obligations | A roll-forward of the Company's asset retirement obligation is as follows (in thousands):
| Amount
Beginning balance as of December 31, 2020 | $ | 28,699 |
Liabilities settled | (2,902) |
Additions | 24,633 |
Accretion expense | 764 |
Ending balance as of June 30, 2021 | $ | 51,194 |

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- Definition Tabular disclosure of the carrying amount of a liability for asset retirement obligations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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