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Receivables, net - Schedule of Receivables (Details) - USD ($) $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	$ 733,961	$ 600,252
Less: allowance for credit losses	943	1,547
Total net receivables	733,018	598,705
Contracts completed and in progress:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billed	367,272	343,190
Unbilled	213,555	119,170
Receivables	580,827	462,360
Materials sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	73,047	61,808
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	$ 80,087	$ 76,084

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