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v3.25.3

Organization, Business and Basis of Presentation (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2025 USD ($) $ / shares | Jun. 30, 2025 USD ($) | Mar. 31, 2025 USD ($) | Sep. 30, 2024 USD ($) $ / shares | Jun. 30, 2024 USD ($) | Mar. 31, 2024 USD ($) | Sep. 30, 2025 USD ($) segment $ / shares | Sep. 30, 2024 USD ($) $ / shares | Dec. 31, 2024 USD ($)
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |
Number of business segments (segment) | segment |  |  |  |  |  |  | 2 |  |
Revenue recognized, related to change orders and claims included as contract price adjustments |  |  |  |  |  |  | $ 14,300 |  | $ 46,000
Increase (decrease) in operating income | $ 46,271 |  |  | $ 20,361 |  |  | 120,348 | $ 23,925 |
Increase (decrease) in net income | $ 32,094 | $ 26,466 | $ 23,308 | $ 10,649 | $ (15,277) | $ 18,939 | $ 81,868 | $ 14,311 |
Increase (decrease) in diluted earnings per common share (in dollars per share) | $ / shares | $ 2.05 |  |  | $ 0.65 |  |  | $ 5.20 | $ 0.86 |
Foreign currency gains (losses) | $ (300) |  |  | $ 100 |  |  | $ 1,100 | $ 400 |
Contracts Accounted for under Percentage of Completion |  |  |  |  |  |  |  |  |
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |  |  |  |  |
Increase (decrease) in consolidated gross margin | (0.60%) |  |  | (3.90%) |  |  | (1.30%) | (4.40%) |
Increase (decrease) in operating income | $ (5,500) |  |  | $ (34,900) |  |  | $ (33,900) | $ (112,700) |
Increase (decrease) in net income | $ (4,200) |  |  | $ (22,300) |  |  | $ (24,800) | $ (70,500) |
Increase (decrease) in diluted earnings per common share (in dollars per share) | $ / shares | $ (0.27) |  |  | $ (1.37) |  |  | $ (1.58) | $ (4.24) |

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