Receivables, net - Schedule of Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	$ 710,199	$ 600,252
Less: allowance for credit losses	951	1,547
Total net receivables	709,248	598,705
Contracts completed and in progress:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billed	304,766	343,190
Unbilled	232,472	119,170
Receivables	537,238	462,360
Materials sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	86,072	61,808
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	$ 86,889	$ 76,084

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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