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Receivables, net - Schedule of Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	$ 837,432	$ 512,511
Less: allowance for credit losses	1,283	769
Total net receivables	836,149	511,742
Contracts completed and in progress:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billed	380,665	250,656
Unbilled	233,327	127,776
Receivables	613,992	378,432
Materials sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	147,549	55,770
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	$ 75,891	$ 78,309

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