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REVENUE FROM CUSTOMERS - Revenue Disaggregation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Disaggregation of Revenue [Line Items]
Revenues	$ 2,115,756	$ 1,972,229	$ 1,769,436
Lump Sum
Disaggregation of Revenue [Line Items]
Revenues	1,040,490	1,076,432	1,001,290
Fixed-Unit Price
Disaggregation of Revenue [Line Items]
Revenues	756,468	613,842	556,234
Residential and Other
Disaggregation of Revenue [Line Items]
Revenues	318,798	281,955	211,912
Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	2,115,756	1,972,229	1,769,436
E-Infrastructure Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	923,728	937,408	905,277
Transportation Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	783,659	630,908	542,550
Transportation Solutions | Heavy Highway
Disaggregation of Revenue [Line Items]
Revenues	547,278	453,042	391,894
Transportation Solutions | Aviation
Disaggregation of Revenue [Line Items]
Revenues	85,005	70,784	82,950
Transportation Solutions | Other
Disaggregation of Revenue [Line Items]
Revenues	151,376	107,082	67,706
Building Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	408,369	403,913	321,609
Building Solutions | Residential
Disaggregation of Revenue [Line Items]
Revenues	306,547	273,699	207,674
Building Solutions | Commercial
Disaggregation of Revenue [Line Items]
Revenues	$ 101,822	$ 130,214	$ 113,935

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