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Severance and Other Charges (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2016
Sep. 30, 2015
Sep. 30, 2016
Sep. 30, 2015
Restructuring Reserve        
Beginning balance, December 31, 2015     $ 22,244  
Additions for costs expensed $ 14,534 $ 1,186 18,858 $ 14,208
Other adjustments     0  
Severance and other payments     (25,666)  
Ending balance, September 30, 2016 15,436   15,436  
International Services        
Restructuring Reserve        
Beginning balance, December 31, 2015     78  
Additions for costs expensed     10,608  
Other adjustments     0  
Severance and other payments     (3,886)  
Ending balance, September 30, 2016 6,800   6,800  
U.S. Services        
Restructuring Reserve        
Beginning balance, December 31, 2015     22,166  
Additions for costs expensed     8,065  
Other adjustments     (535)  
Severance and other payments     (21,254)  
Ending balance, September 30, 2016 8,442   8,442  
Tubular Sales        
Restructuring Reserve        
Beginning balance, December 31, 2015     0  
Additions for costs expensed     185  
Other adjustments     535  
Severance and other payments     (526)  
Ending balance, September 30, 2016 $ 194   $ 194