XML 234 R104.htm IDEA: XBRL DOCUMENT
v3.22.0.1

ASSET RETIREMENT OBLIGATIONS - Estimated Payments (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Estimated payments of asset retirement obligations: |  |  |
2022 | $ 7,582 |  |
2023 | 2,232 |  |
2024 | 558 |  |
2025 | 3,788 |  |
2026 | 7,256 |  |
Thereafter | 208,021 |  |
Aggregate undiscounted asset retirement obligations | 229,437 |  |
Effect of discounting | (98,338) | $ (102,100) |
Total asset retirement obligations | 131,099 | 127,898 | $ 137,514
Less: current portion | (7,582) |  |
Asset retirement obligations | 123,517 | 121,487 |
Surety bonds outstanding to performance of reclamation obligations | $ 173,900 | $ 171,100 |

X
- Definition Undiscounted amount of estimated future payments of asset retirement obligations. + References No definition available. + Details
Name: | arlp_AggregateUndiscountedAssetRetirementObligations
Namespace Prefix: | arlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount necessary to reduce estimated payments of asset retirement obligations to present value. + References No definition available. + Details
Name: | arlp_AssetRetirementObligationEffectOfDiscounting
Namespace Prefix: | arlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of surety bonds that are available for the future payment of reclamation obligations. + References No definition available. + Details
Name: | arlp_BondsOutstandingToSecurePerformanceOfReclamationObligations
Namespace Prefix: | arlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount of estimated payments of asset retirement obligations in the fifth fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | arlp_EstimatedPaymentsOfAssetRetirementObligationsYearFive
Namespace Prefix: | arlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of estimated payments of asset retirement obligations in the fourth fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | arlp_EstimatedPaymentsOfAssetRetirementObligationsYearFour
Namespace Prefix: | arlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of estimated payments of asset retirement obligations in the next fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | arlp_EstimatedPaymentsOfAssetRetirementObligationsYearOne
Namespace Prefix: | arlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of estimated payments of asset retirement obligations after the fifth fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | arlp_EstimatedPaymentsOfAssetRetirementObligationsYearThereafter
Namespace Prefix: | arlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of estimated payments of asset retirement obligations in the third fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | arlp_EstimatedPaymentsOfAssetRetirementObligationsYearThree
Namespace Prefix: | arlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of estimated payments of asset retirement obligations in the second fiscal year following the latest fiscal year. + References No definition available. + Details
Name: | arlp_EstimatedPaymentsOfAssetRetirementObligationsYearTwo
Namespace Prefix: | arlp_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
Name: | us-gaap_AssetRetirementObligation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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

X
- Definition Current portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
Name: | us-gaap_AssetRetirementObligationCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Noncurrent portion of the carrying amount of a liability for an asset retirement obligation. An asset retirement obligation is a legal obligation associated with the disposal or retirement 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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6392692&loc=d3e7535-110849 + Details
Name: | us-gaap_AssetRetirementObligationsNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant