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Business Segment Information - Financial Data By Reportable Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2020 | Sep. 30, 2019 | Sep. 30, 2020 | Sep. 30, 2019
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | $ 193,490 | $ 212,609 | $ 573,658 | $ 581,160
Income from operations | 19,015 | 38,998 | 12,182 | 62,339
Goodwill impairment | 0 | 0 | (6,689) | 0
Reportable Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | 29,961 | 49,615 | 47,992 | 93,830
Intercompany Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | (11,282) | (23,283) | (32,835) | (51,398)
Corporate, Eliminations and Other |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Income from operations | (10,946) | (10,617) | (29,121) | (31,491)
Well Intervention |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 140,803 | 170,206 | 427,296 | 451,511
Goodwill impairment |  |  | (6,689) |
Well Intervention | Reportable Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 140,803 | 170,206 | 427,296 | 451,511
Income from operations | 18,844 | 37,689 | 24,910 | 74,002
Well Intervention | Intercompany Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | (4,120) | (15,318) | (11,334) | (28,355)
Robotics |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 49,802 | 51,909 | 135,896 | 136,396
Robotics | Reportable Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 49,802 | 51,909 | 135,896 | 136,396
Income from operations | 6,983 | 8,876 | 11,940 | 7,921
Robotics | Intercompany Eliminations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | (7,162) | (7,965) | (21,501) | (23,043)
Production Facilities |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 14,167 | 13,777 | 43,301 | 44,651
Production Facilities | Reportable Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Net revenues | 14,167 | 13,777 | 43,301 | 44,651
Income from operations | $ 4,134 | $ 3,050 | $ 11,142 | $ 11,907

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