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Receivables, net - Schedule of Receivables (Details) - USD ($) $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	$ 705,701	$ 512,511
Less: allowance for credit losses	713	769
Total net receivables	704,988	511,742
Contracts completed and in progress:
Accounts, Notes, Loans and Financing Receivable [Line Items]
Billed	290,058	250,656
Unbilled	218,096	127,776
Receivables	508,154	378,432
Materials sales
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	109,836	55,770
Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables	$ 87,711	$ 78,309

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