XML 40 R24.htm IDEA: XBRL DOCUMENT
v3.22.4

Asset Retirement Obligations | 12 Months Ended
--- | ---
Dec. 31, 2022
Asset Retirement Obligation Disclosure [Abstract] |
Asset Retirement Obligations | 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 |

X
- References No definition available. + Details
Name: | us-gaap_AssetRetirementObligationDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The entire disclosure for an asset retirement obligation and the associated long-lived asset. An asset retirement obligation is a legal obligation associated with the disposal or retirement from service of a tangible long-lived asset that results from the acquisition, construction or development, or the normal operations of a long-lived asset, except for certain obligations of lessees. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7569-110849 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -URI https://asc.fasb.org/subtopic&trid=2175671 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
Name: | us-gaap_AssetRetirementObligationDisclosureTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration