Revenue Recognition and Related Balance Sheet Accounts - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Disaggregation of Revenue [Line Items]
Revenue	$ 1,262,127	$ 598,890	$ 2,300,020	$ 1,104,843
Engineering & Consulting
Disaggregation of Revenue [Line Items]
Revenue	206,893	196,094	372,694	341,541
Installation & Maintenance
Disaggregation of Revenue [Line Items]
Revenue	1,055,234	402,796	1,927,326	763,302
Engineering & Design \| Engineering & Consulting
Disaggregation of Revenue [Line Items]
Revenue	102,348	106,685	199,919	213,227
Program & Project Management \| Engineering & Consulting
Disaggregation of Revenue [Line Items]
Revenue	104,545	89,409	172,775	128,314
Installation & Fabrication \| Installation & Maintenance
Disaggregation of Revenue [Line Items]
Revenue	924,884	320,025	1,683,476	609,707
Maintenance & Service \| Installation & Maintenance
Disaggregation of Revenue [Line Items]
Revenue	$ 130,350	$ 82,771	$ 243,850	$ 153,595

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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+ Details

- Definition

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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