XML 50 R37.htm IDEA: XBRL DOCUMENT v3.24.1.u1

WORKERS' COMPENSATION AND PNEUMOCONIOSIS (Tables)

3 Months Ended

Mar. 31, 2024

Black lung benefits:

Reconciliation of changes in workers' compensation liability

​

​	​	​	​	​	​	​	​
​		Three Months Ended
​	​	March 31,					​
​	​	2024			2023		​
​	​	​	​	​	​	​	​
Beginning balance	​	$	47,975	​	$	49,452	​
Changes in accruals	​		3,125	​		3,874	​
Payments	​		(4,048)	​		(3,859)	​
Interest accretion	​		509	​		550	​
Ending balance	​	$	47,561	​	$	50,017	​

Pneumoconiosis benefits

Black lung benefits:

Components of net periodic benefit cost

​	​	​	​	​	​	​	​
​		Three Months Ended					​
​	​	March 31,					​
​	​	2024			2023
​	​	(in thousands)					​
Black lung benefits:	​	​	​	​	​	​	​
Service cost	​	$	861	​	$	669
Interest cost (1)	​		1,558	​		1,238	​
Net amortization (1)	​		839	​		346	​
Net periodic benefit cost	​	$	3,258	​	$	2,253	​

(1) Interest cost and net amortization are included in the Other income (expense) line item within our condensed consolidated statements of income.

X

- Definition

Tabular disclosure of the changes in the liability for workers' compensation during the period.

+ References

No definition available.

+ Details

Name:	arlp_ScheduleOfReconciliationOfChangesInWorkersCompensationLiabilityTableTextBlock
Namespace Prefix:	arlp_
Data Type:	dtr-types:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 715
-SubTopic 20
-Subparagraph (h)
-Name Accounting Standards Codification
-Paragraph 1
-Section 50
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147480506/715-20-50-1

+ Details

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

X

- Details

Name:	us-gaap_RetirementPlanTypeAxis=us-gaap_OtherPostretirementBenefitPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: