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v3.23.3

Organization, Business and Basis of Presentation (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Sep. 30, 2023 USD ($) $ / shares | Sep. 30, 2022 USD ($) $ / shares | Sep. 30, 2023 USD ($) segment $ / shares | Sep. 30, 2022 USD ($) $ / shares | Dec. 31, 2022 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 |  |  | 57,100 |  | $ 19,600
Increase (decrease) in operating income | $ 32,027 | $ 26,975 | 91,891 | 78,122 |
Increase (decrease) in net income | $ 21,512 | $ 18,436 | $ 66,948 | $ 58,808 |
Increase (decrease) in diluted earnings per common share (in dollars per share) | $ / shares | $ 1.28 | $ 1.09 | $ 3.98 | $ 3.45 |
Contracts Accounted for under Percentage of Completion |  |  |  |  |
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |  |
Increase (decrease) in consolidated gross margin | (1.30%) | (0.30%) | (1.20%) | 0.00% |
Increase (decrease) in operating income | $ (11,500) | $ (2,400) | $ (32,200) | $ 300 |
Increase (decrease) in net income | $ (8,000) | $ (1,700) | $ (22,400) | $ 100 |
Increase (decrease) in diluted earnings per common share (in dollars per share) | $ / shares | $ (0.47) | $ (0.10) | $ (1.33) | $ 0.01 |

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