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v3.24.3

Organization, Business and Basis of Presentation (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2024 USD ($) $ / shares | Jun. 30, 2024 USD ($) | Mar. 31, 2024 USD ($) | Sep. 30, 2023 USD ($) $ / shares | Jun. 30, 2023 USD ($) | Mar. 31, 2023 USD ($) | Sep. 30, 2024 USD ($) segment $ / shares | Sep. 30, 2023 USD ($) $ / shares | Dec. 31, 2023 USD ($)
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |
Number of business segments (segment) | segment |  |  |  |  |  |  | 2 |  |
Foreign currency gains (losses) |  |  |  |  |  |  | $ 0 | $ 0 |
Revenue recognized, related to change orders and claims included as contract price adjustments |  |  |  |  |  |  | 80,400 |  | $ 76,500
Increase (decrease) in operating income | $ 20,361 |  |  | $ 32,027 |  |  | 23,925 | 91,891 |
Increase (decrease) in net income | $ 10,649 | $ (15,277) | $ 18,939 | $ 21,512 | $ 22,273 | $ 23,163 | $ 14,311 | $ 66,948 |
Increase (decrease) in diluted earnings per common share (in dollars per share) | $ / shares | $ 0.65 |  |  | $ 1.28 |  |  | $ 0.86 | $ 3.98 |
Contracts Accounted for under Percentage of Completion |  |  |  |  |  |  |  |  |
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |
Increase (decrease) in consolidated gross margin | (3.90%) |  |  | (1.30%) |  |  | (4.40%) | (1.20%) |
Increase (decrease) in operating income | $ (34,900) |  |  | $ (11,500) |  |  | $ (112,700) | $ (32,200) |
Increase (decrease) in net income | $ (22,300) |  |  | $ (8,000) |  |  | $ (70,500) | $ (22,400) |
Increase (decrease) in diluted earnings per common share (in dollars per share) | $ / shares | $ (1.37) |  |  | $ (0.47) |  |  | $ (4.24) | $ (1.33) |

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