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v3.19.3

Organization, Business and Basis of Presentation (Details) $ / shares in Units, $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2019 USD ($) $ / shares | Sep. 30, 2018 USD ($) $ / shares | Sep. 30, 2019 USD ($) segment $ / shares | Sep. 30, 2018 USD ($) $ / shares
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |
Number of business segments (segment) | segment |  |  | 2 |
Foreign currency gains |  |  | $ 100 | $ 0
Contract with customer, liability, cumulative catch-up adjustment to revenue, change in estimate of transaction price |  |  | 31,100 | 8,800
Increase (decrease) in operating income | $ 17,262 | $ 14,137 | 36,298 | 32,901
Increase (decrease) in net income | $ 10,355 | $ 7,957 | $ 24,915 | $ 20,436
Increase (decrease) in diluted earnings per common share (in dollars per share) | $ / shares | $ 0.62 | $ 0.48 | $ 1.49 | $ 1.23
Contracts Accounted for under Percentage of Completion [Member] |  |  |  |
Organization Consolidation and Presentation of Financial Statements [Line Items] |  |  |  |
Increase (decrease) in consolidated gross margin | 0.20% | (0.60%) | (0.50%) | (0.40%)
Increase (decrease) in operating income | $ 900 | $ (2,100) | $ (7,800) | $ (3,900)
Increase (decrease) in net income | $ 800 | $ (1,600) | $ (3,300) | $ (2,800)
Increase (decrease) in diluted earnings per common share (in dollars per share) | $ / shares | $ 0.05 | $ (0.09) | $ (0.20) | $ (0.17)

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