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Severance and Other Charges (Tables)
 9 Months Ended
Sep. 30, 2015
Restructuring and Related Activities [Abstract]  
Restructuring and Related Costs
Below is a reconciliation of the beginning and ending liability balance (in thousands):

 
International Services
 
U.S. Services
 
Tubular Sales
 
Total
Beginning balance, December 31, 2014
$
—

 
$
—

 
$
—

 
$
—

Additions for costs expensed
493

 
12,569

 
1,146

 
14,208

Other adjustments
—

 
(40
)
 
—

 
(40
)
Severance and other payments
(493
)
 
(6,274
)
 
(898
)
 
(7,665
)
Reclass to equity for accelerated RSU grants
—

 
(2,283
)
 
—

 
(2,283
)
Ending balance, September 30, 2015
$
—

 
$
3,972

 
$
248

 
$
4,220