Consolidated Statements of Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Total Revenue from Contracts with Customers	$ 604,882	$ 303,222	$ 1,141,036	$ 633,982
Loss on Commodity Derivatives, net	(68,352)	(20,437)	(256,506)	(20,437)
Miscellaneous Other Income	7,724	2,034	12,072	5,223
Gain on Sale of Assets	365	2,340	6,546	10,542
Total Revenue and Other Income	544,619	287,159	903,148	629,310
Costs and Expenses:
Operating and Other Costs	244,764	175,104	463,299	360,638
Depreciation, Depletion and Amortization	57,880	52,199	113,834	112,096
Freight Expense	50,411	26,010	88,800	53,023
General and Administrative Costs	27,364	22,486	64,513	46,026
Loss (Gain) on Debt Extinguishment	1,565	(106)	3,687	(789)
Interest Expense, net	13,121	16,187	27,473	31,448
Total Costs and Expenses	395,105	291,880	761,606	602,442
Earnings (Loss) Before Income Tax	149,514	(4,721)	141,542	26,868
Add: Income Tax Expense	23,223	(8,893)	19,701	(3,708)
Net Income	$ 126,291	$ 4,172	$ 121,841	$ 30,576
Earnings per Share:
Total Basic Earnings per Share (in dollars per share)	$ 3.62	$ 0.12	$ 3.51	$ 0.89
Total Dilutive Earnings per Share (in dollars per share)	$ 3.54	$ 0.12	$ 3.42	$ 0.87
Coal Revenue [Member]
Total Revenue from Contracts with Customers	$ 532,692	$ 259,832	$ 1,009,060	$ 545,367
Terminal Revenue [Member]
Total Revenue from Contracts with Customers	21,779	17,380	43,176	35,592
Freight Revenue [Member]
Total Revenue from Contracts with Customers	$ 50,411	$ 26,010	$ 88,800	$ 53,023