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Asset Retirement Obligations (Tables) | 12 Months Ended
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Dec. 31, 2022
Asset Retirement Obligation Disclosure [Abstract] |
Schedule of changes in asset retirement obligations | The reconciliation of the changes in our AROs is presented below:
| Year ended December 31,
| 2022 |  | 2021
Beginning balance, ARO liability | $ | 20.7 |  |  | $ | 19.8 |
Additional ARO liability incurred | 3.8 |  |  | 4.9 |
ARO liabilities settled | (4.6) |  |  | (6.1) |
Accretion expense | 1.9 |  |  | 2.1 |
Revisions in estimated cash flows | (0.6) |  |  | — |
Ending balance, ARO liability | $ | 21.2 |  |  | $ | 20.7 |

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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
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