Consolidated Statements of (Loss) Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Revenues	$ 1,102,361	$ 490,720	$ 2,119,767	$ 1,037,409
Costs and Expenses:
Cost of Sales (exclusive of items shown separately below)	912,574	344,037	1,782,870	698,077
Depreciation, Depletion and Amortization	169,263	54,847	290,819	111,844
General and Administrative Costs	34,829	20,885	124,152	41,518
Other Operating Expense (Income), net	4,948	(903)	(4,911)	(9,923)
Costs and Expenses, Total	1,121,614	418,866	2,192,930	841,516
(Loss) Income from Operations	(19,253)	71,854	(73,163)	195,893
Interest Expense	(10,051)	(4,993)	(18,070)	(10,399)
Interest Income	6,401	4,627	12,719	9,129
Loss on Debt Extinguishment	0	0	(11,680)	0
Non-Service Related Pension and Postretirement Benefit Costs	(6,537)	(4,400)	(12,739)	(8,801)
(Loss) Earnings Before Income Tax	(29,440)	67,088	(102,933)	185,822
Income Tax Expense	7,116	9,027	2,900	25,870
Net (Loss) Income	$ (36,556)	$ 58,061	$ (105,833)	$ 159,952
(Loss) Earnings per Share:
Total Basic (Loss) Earnings per Share (in dollars per share)	$ (0.70)	$ 1.96	$ (2.06)	$ 5.37
Total Dilutive (Loss) Earnings per Share (in dollars per share)	(0.70)	1.96	(2.06)	5.35
Dividends declared per common share (in dollars per share)	$ 0.10	$ 0	$ 0.20	$ 0