XML 54 R25.htm IDEA: XBRL DOCUMENT v3.24.0.1

Asset Retirement Obligations

12 Months Ended

Dec. 31, 2023

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,
			2023						2022
Beginning balance			$	21.2					$	20.7
Additional ARO liabilities incurred			3.1						3.8
ARO liabilities settled			(1.5)						(4.6)
Accretion expense			2.0						1.9
Acquired ARO liabilities (See Note 2)			23.9						—
Revisions in estimated cash flows			2.4						(0.6)
Ending balance			$	51.1					$	21.2
Current portion of asset retirement obligations (1)			1.6						1.6
Asset retirement obligations - less current portion			$	49.5					$	19.6

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
-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

+ Details

Name:	us-gaap_AssetRetirementObligationDisclosureTextBlock
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration