Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Revenue	$ 2,661,161	$ 2,424,706	$ 2,066,084
Cost of services and products	2,175,667	2,025,735	1,758,707
Gross Margin	485,494	398,971	307,377
Selling, general and administrative expense	239,224	217,643	196,514
Income from Operations	246,270	181,328	110,863
Interest income	12,124	15,425	5,708
Interest expense, net of amounts capitalized	(37,917)	(36,523)	(38,215)
Equity earnings of unconsolidated affiliates	929	2,061	1,707
Other Nonoperating Expense	3,510	(1,236)	(1,011)
Income (Loss), Including Portion Attributable to Noncontrolling Interest, before Tax	224,916	161,055	79,052
Income Tax Expense (Benefit)	77,448	63,652	53,111
Net Income	$ 147,468	$ 97,403	$ 25,941
Basic Earnings per Share	$ 1.46	$ 0.97	$ 0.26
Weighted Average Number of Shares Outstanding, Basic	101,180	100,697	100,185
Diluted Earnings per Share	$ 1.44	$ 0.95	$ 0.26
Weighted Average Number of Shares Outstanding, Diluted	102,369	102,156	101,447