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Revenue Recognition and Related Balance Sheet Accounts - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Revenue	$ 2,550,491	$ 2,098,602	$ 1,615,062
Engineering & Consulting
Disaggregation of Revenue [Line Items]
Revenue	726,293	601,602	426,246
Installation & Maintenance
Disaggregation of Revenue [Line Items]
Revenue	1,824,198	1,497,000	1,188,816
Engineering & Design | Engineering & Consulting
Disaggregation of Revenue [Line Items]
Revenue	425,014	345,977	222,198
Program & Project Management | Engineering & Consulting
Disaggregation of Revenue [Line Items]
Revenue	301,279	255,625	204,048
Installation & Fabrication | Installation & Maintenance
Disaggregation of Revenue [Line Items]
Revenue	1,493,830	1,183,750	942,841
Maintenance & Service | Installation & Maintenance
Disaggregation of Revenue [Line Items]
Revenue	$ 330,368	$ 313,250	$ 245,975

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