CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Statement of Comprehensive Income [Abstract]
Revenue	$ 438,884	$ 410,539	$ 1,353,193	$ 1,263,647
Operating expenses	365,971	342,148	1,108,824	1,027,146
Gross margin	72,913	68,391	244,369	236,501
Corporate general and administrative expenses	23,227	13,136	63,988	44,527
Operating income	49,686	55,255	180,381	191,974
Other (expense) income:
Interest expense	(4,968)	(5,848)	(15,363)	(15,023)
Gain on sale of operations, net	4,953	77	4,953	176
Other income (expense), net	1,300	(2,288)	13,207	8,245
Total other income (expense), net	1,285	(8,059)	2,797	(6,602)
Income before income tax expense	50,971	47,196	183,178	185,372
Income tax expense	15,887	13,514	51,417	51,667
Net Income	$ 35,084	$ 33,682	$ 131,761	$ 133,705
Earnings per share:
Basic (in dollars per share)	$ 0.70	$ 0.68	$ 2.63	$ 2.67
Diluted (in dollars per share)	$ 0.70	$ 0.67	$ 2.62	$ 2.64
Basic weighted average shares outstanding (in shares)	50,145	49,838	50,101	50,054
Diluted weighted average shares outstanding (in shares)	50,401	50,371	50,359	50,644
Comprehensive income:
Net income	$ 35,084	$ 33,682	$ 131,761	$ 133,705
Other comprehensive (loss) income, net of tax	(2,497)	487	(1,621)	811
Comprehensive income	$ 32,587	$ 34,169	$ 130,140	$ 134,516