CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
CONSOLIDATED STATEMENTS OF OPERATIONS
Revenues	$ 377,833	$ 476,668
Cost of revenues (exclusive of depreciation and amortization shown separately below)	276,609	305,250
Selling, general and administrative expenses	40,085	42,197
Pension settlement charges		17,375
Depreciation and amortization	30,004	24,125
Gain on disposition of assets, net	(1,214)	(2,936)
Operating income	32,349	90,657
Interest expense	(234)	(72)
Interest income	2,965	1,855
Other income, net	767	761
Income before income taxes	35,847	93,201
Income tax provision	8,380	21,677
Net income	$ 27,467	$ 71,524
Earnings per share
Basic (in dollars per share)	$ 0.13	$ 0.33
Diluted (in dollars per share)	0.13	0.33
Dividends paid per share	$ 0.04	$ 0.04