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Restructuring Charges - By segment (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2023
Restructuring charges    
Restructuring charges $ 592 $ 1,554
Organizational Restructuring    
Restructuring charges    
Restructuring charges 592 1,554
Corporate    
Restructuring charges    
Restructuring charges 205 1,066
Corporate | Organizational Restructuring    
Restructuring charges    
Restructuring charges 205 1,066
Contract operations | Operating    
Restructuring charges    
Restructuring charges   101
Contract operations | Operating | Organizational Restructuring    
Restructuring charges    
Restructuring charges   101
Aftermarket services | Operating    
Restructuring charges    
Restructuring charges 387 387
Aftermarket services | Operating | Organizational Restructuring    
Restructuring charges    
Restructuring charges $ 387 $ 387