CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
NET INCOME	$ 159,567	$ 192,678
OTHER COMPREHENSIVE INCOME:
OTHER COMPREHENSIVE INCOME	923	565
COMPREHENSIVE INCOME	160,490	193,243
Less: Comprehensive income attributable to noncontrolling interest	(1,510)	(1,493)
COMPREHENSIVE INCOME ATTRIBUTABLE TO ARLP	158,980	191,750
Defined benefit pension plan
OTHER COMPREHENSIVE INCOME:
Amortization of prior service cost (1)	47	47
Amortization of net actuarial loss (1)	37	173
Total recognized in accumulated other comprehensive Income	84	220
Pneumoconiosis benefits
OTHER COMPREHENSIVE INCOME:
Amortization of net actuarial loss (1)	839	345
Total recognized in accumulated other comprehensive Income	$ 839	$ 345