Consolidated Statements Of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Document Period End Date			Sep. 30, 2023
Revenue	$ 635,180	$ 559,671	$ 1,770,077	$ 1,529,861
Cost of services and products	520,483	463,917	1,476,735	1,312,586
Gross margin	114,697	95,754	293,342	217,275
Selling, general and administrative expense	56,768	48,879	159,464	148,589
Income (loss) from operations	57,929	46,875	133,878	68,686
Interest income	3,724	1,396	12,344	2,959
Interest expense	(9,802)	(9,552)	(28,602)	(28,614)
Equity in income (losses) of unconsolidated affiliates	498	496	1,616	1,108
Other income (expense), net	968	(1,222)	(4,800)	(195)
Income (loss) before income taxes	53,317	37,993	114,436	43,944
Provision (benefit) for income taxes	23,505	19,690	61,562	41,131
Net Income (Loss)	$ 29,812	$ 18,303	$ 52,874	$ 2,813
Weighted-average shares outstanding
Basic (in shares)	100,780	100,259	100,667	100,160
Diluted (in shares)	102,206	101,310	102,086	101,372
Earnings (loss) per share
Basic (in dollars per share)	$ 0.30	$ 0.18	$ 0.53	$ 0.03
Diluted (in dollars per share)	$ 0.29	$ 0.18	$ 0.52	$ 0.03