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Asset Retirement Obligations

12 Months Ended

Dec. 31, 2024

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,
			2024						2023
Beginning balance			$	51.1					$	21.2
Additional ARO liabilities incurred			6.7						3.1
ARO liabilities settled			(4.6)						(1.5)
Accretion expense			2.1						2.0
Acquired ARO liabilities (See Note 2)			—						23.9
Revisions in estimated cash flows			10.8						2.4
Ending balance			$	66.1					$	51.1
Current portion of asset retirement obligations (1)			4.6						1.6
Asset retirement obligations - less current portion			$	61.5					$	49.5

(1) Current portion of asset retirement obligations is recorded in accrued and other current liabilities.

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- References

No definition available.

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- 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
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481850/410-20-50-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 410
-SubTopic 20
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org/410-20/tableOfContent

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-SubTopic 20
-Topic 410
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481850/410-20-50-2

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