CONDENSED CONSOLIDATED BALANCE SHEETS - USD ($) $ in Thousands	Mar. 31, 2024	Dec. 31, 2023
CURRENT ASSETS:
Cash and cash equivalents	$ 133,957	$ 59,813
Trade receivables	272,191	282,622
Other receivables	9,208	9,678
Inventories, net	162,197	127,556
Advance royalties	6,173	7,780
Digital assets	30,325	9,579
Prepaid expenses and other assets	16,891	19,093
Total current assets	630,942	516,121
PROPERTY, PLANT AND EQUIPMENT:
Property, plant and equipment, at cost	4,284,051	4,172,544
Less accumulated depreciation, depletion and amortization	(2,204,392)	(2,149,881)
Total property, plant and equipment, net	2,079,659	2,022,663
OTHER ASSETS:
Advance royalties	78,933	71,125
Equity method investments	45,693	46,503
Equity securities	92,541	92,541
Operating lease right-of-use assets	16,357	16,569
Other long-term assets	21,662	22,904
Total other assets	255,186	249,642
TOTAL ASSETS	2,965,787	2,788,426
CURRENT LIABILITIES:
Accounts payable	107,600	108,269
Accrued taxes other than income taxes	21,367	21,007
Accrued payroll and related expenses	27,301	29,884
Accrued interest	9,067	3,558
Workers' compensation and pneumoconiosis benefits	15,913	15,913
Other current liabilities	46,295	28,498
Current maturities, long-term debt, net	76,422	20,338
Total current liabilities	303,965	227,467
LONG-TERM LIABILITIES:
Long-term debt, excluding current maturities, net	354,619	316,821
Pneumoconiosis benefits	128,809	127,249
Accrued pension benefit	8,112	8,618
Workers' compensation	36,843	37,257
Asset retirement obligations	147,769	146,925
Long-term operating lease obligations	13,684	13,661
Deferred income tax liabilities	33,060	33,450
Other liabilities	17,522	18,381
Total long-term liabilities	740,418	702,362
Total liabilities	1,044,383	929,829
COMMITMENTS AND CONTINGENCIES - (NOTE 4)
ARLP Partners' Capital:
Limited Partners - Common Unitholders 128,061,981 and 127,125,437 units outstanding, respectively	1,958,382	1,896,027
Accumulated other comprehensive loss	(60,602)	(61,525)
Total ARLP Partners' Capital	1,897,780	1,834,502
Noncontrolling interest	23,624	24,095
Total Partners' Capital	1,921,404	1,858,597
TOTAL LIABILITIES AND PARTNERS' CAPITAL	$ 2,965,787	$ 2,788,426