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Severance and Other Charges, net - Employee Separation Liability (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Restructuring Reserve [Roll Forward]        
Balance at December 31, 2019     $ 5,837  
Additions for costs expensed $ 4,794 $ 593 5,332 $ 982
Severance and other payments     (6,849)  
Other adjustments     (334)  
Balance at June 30, 2020 3,986   3,986  
Corporate        
Restructuring Reserve [Roll Forward]        
Balance at December 31, 2019     2,186  
Additions for costs expensed     1,186  
Severance and other payments     (1,375)  
Other adjustments     (348)  
Balance at June 30, 2020 1,649   1,649  
Tubular Running Services | Operating Segments        
Restructuring Reserve [Roll Forward]        
Balance at December 31, 2019     2,000  
Additions for costs expensed     3,456  
Severance and other payments     (4,078)  
Other adjustments     (8)  
Balance at June 30, 2020 1,370   1,370  
Tubulars | Operating Segments        
Restructuring Reserve [Roll Forward]        
Balance at December 31, 2019     19  
Additions for costs expensed     15  
Severance and other payments     (13)  
Other adjustments     0  
Balance at June 30, 2020 21   21  
Cementing Equipment | Operating Segments        
Restructuring Reserve [Roll Forward]        
Balance at December 31, 2019     1,632  
Additions for costs expensed     675  
Severance and other payments     (1,383)  
Other adjustments     22  
Balance at June 30, 2020 $ 946   $ 946