Condensed Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Income Statement [Abstract]
Contract revenues	$ 193,755	$ 170,086	$ 436,620	$ 368,746
Revenue, Product and Service [Extensible Enumeration]	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember
Costs of contract revenues	$ 157,189	$ 140,246	$ 330,531	$ 293,332
Cost, Product and Service [Extensible Enumeration]	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember	us-gaap:ServiceMember
Gross profit	$ 36,566	$ 29,840	$ 106,089	$ 75,414
General and administrative expenses	19,478	16,161	39,516	32,272
Other (gains) losses	1	(906)	(459)	(2,922)
Operating income	17,087	14,585	67,032	46,064
Interest expense—net	(4,215)	(4,198)	(8,666)	(8,089)
Other income (expense)	246	128	(122)	553
Income before income taxes	13,118	10,515	58,244	38,528
Income tax provision	(3,423)	(2,842)	(15,133)	(9,831)
Net income	$ 9,695	$ 7,673	$ 43,111	$ 28,697
Basic earnings per share	$ 0.15	$ 0.11	$ 0.64	$ 0.43
Basic weighted average shares	66,698	67,118	67,037	66,924
Diluted earnings per share	$ 0.14	$ 0.11	$ 0.64	$ 0.42
Diluted weighted average shares	67,185	67,697	67,806	67,615