XML 137 R34.htm IDEA: XBRL DOCUMENT
v3.24.0.1

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES |
Summary of advance royalties | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | December 31, |
​ | ​ | 2023 |  | 2022 | ​
​ | ​ | (in thousands) | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Advance royalties, affiliates (see Note 20 – Related-Party Transactions) | ​ | $ | 64,599 | ​ | $ | 60,608 | ​
Advance royalties, third-parties | ​ |  | 14,306 | ​ |  | 14,661 | ​
Total advance royalties | ​ | $ | 78,905 | ​ | $ | 75,269 | ​

X
- Definition Tabular disclosure of the details pertaining to advance royalty payments. + References No definition available. + Details
Name: | arlp_AdvanceRoyaltiesTableTextBlock
Namespace Prefix: | arlp_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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