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Receivables, net - Schedule of Receivables (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Dec. 31, 2024
--- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables | $ 472,078 | $ 512,511
Less: allowance for credit losses | 742 | 769
Total net receivables | 471,336 | 511,742
Contracts completed and in progress: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Billed | 211,878 | 250,656
Unbilled | 126,837 | 127,776
Receivables | 338,715 | 378,432
Materials sales |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables | 45,892 | 55,770
Other |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Receivables | $ 87,471 | $ 78,309

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