Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

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Commitments and Contingencies (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2015
USD ($)
item
Dec. 31, 2014
USD ($)
Value-added tax assessments and other civil litigation    
Commitments and contingencies    
Minimum number of claims that the Company's insurance coverage may not be sufficient to cover | item 1  
Provision for losses $ 0  
Future payments, minimum 0  
Future payments, maximum 700  
Non-income Tax Contingencies    
Commitments and contingencies    
Accrued liabilities 325 $ 2,760
Future payments, minimum 0  
Future payments, maximum $ 2,600