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REVENUE FROM CUSTOMERS - Revenue Disaggregation (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disaggregation of Revenue [Line Items]
Revenues	$ 1,972,229	$ 1,769,436	$ 1,414,374
Lump Sum
Disaggregation of Revenue [Line Items]
Revenues	1,076,432	1,001,290	479,049
Fixed-Unit Price
Disaggregation of Revenue [Line Items]
Revenues	613,842	556,234	723,344
Residential and Other
Disaggregation of Revenue [Line Items]
Revenues	281,955	211,912	211,981
Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	1,972,229	1,769,436	1,414,374
E-Infrastructure Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	937,408	905,277	468,784
Transportation Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	630,908	542,550	628,190
Transportation Solutions | Heavy Highway
Disaggregation of Revenue [Line Items]
Revenues	453,042	391,894	467,678
Transportation Solutions | Aviation
Disaggregation of Revenue [Line Items]
Revenues	70,784	82,950	115,258
Transportation Solutions | Other
Disaggregation of Revenue [Line Items]
Revenues	107,082	67,706	45,254
Building Solutions | Operating Segments
Disaggregation of Revenue [Line Items]
Revenues	403,913	321,609	317,400
Building Solutions | Residential
Disaggregation of Revenue [Line Items]
Revenues	273,699	207,674	209,201
Building Solutions | Commercial
Disaggregation of Revenue [Line Items]
Revenues	$ 130,214	$ 113,935	$ 108,199

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