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Segments and Related Information - Financial Information by Business Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Dec. 31, 2022
Segment Reporting Information [Line Items]          
Revenues $ 194,289 $ 189,394 $ 574,017 $ 535,272  
Depreciation and amortization 15,416 16,413 46,209 51,469  
Operating income (loss) 6,190 5,058 15,334 (368)  
Capital expenditures 6,032 6,810 23,370 13,263  
Total assets 1,048,020 1,050,370 1,048,020 1,050,370 $ 1,064,392
Facility consolidation charges 1,600   1,600    
Gain related to litigation settlement   6,100   6,100  
Corporate          
Segment Reporting Information [Line Items]          
Revenues 0 0 0 0  
Depreciation and amortization 152 167 470 510  
Operating income (loss) (10,781) (10,332) (31,623) (29,611)  
Capital expenditures 150 23 427 153  
Total assets 64,044 46,736 64,044 46,736  
Offshore/ Manufactured Products          
Segment Reporting Information [Line Items]          
Revenues 111,043 96,037 303,328 276,616  
Offshore/ Manufactured Products | Operating Segments          
Segment Reporting Information [Line Items]          
Revenues 111,043 96,037 303,328 276,616  
Depreciation and amortization 4,921 5,072 14,236 15,651  
Operating income (loss) 17,804 13,373 40,147 33,010  
Capital expenditures 2,739 1,620 7,936 3,093  
Total assets 536,263 540,940 536,263 540,940  
Well Site Services          
Segment Reporting Information [Line Items]          
Revenues 59,831 60,509 191,425 163,500  
Well Site Services | Operating Segments          
Segment Reporting Information [Line Items]          
Revenues 59,831 60,509 191,425 163,500  
Depreciation and amortization 6,313 6,732 19,023 22,059  
Operating income (loss) 3,285 2,359 14,983 (435)  
Capital expenditures 2,602 4,894 14,046 9,360  
Total assets 201,384 205,018 201,384 205,018  
Downhole Technologies          
Segment Reporting Information [Line Items]          
Revenues 23,415 32,848 79,264 95,156  
Downhole Technologies | Operating Segments          
Segment Reporting Information [Line Items]          
Revenues 23,415 32,848 79,264 95,156  
Depreciation and amortization 4,030 4,442 12,480 13,249  
Operating income (loss) (4,118) (342) (8,173) (3,332)  
Capital expenditures 541 273 961 657  
Total assets $ 246,329 $ 257,676 $ 246,329 $ 257,676