Quarterly report pursuant to Section 13 or 15(d)

Commitments and Contingencies (Details)

v3.10.0.1
Commitments and Contingencies (Details)
9 Months Ended
Sep. 30, 2018
USD ($)
claim
Dec. 31, 2017
USD ($)
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 | claim 1  
Provision for losses $ 0  
Non-Income Tax Contingencies    
Commitments and contingencies    
Accrued liabilities 400,000 $ 400,000
Minimum | Value-added tax assessments and other civil litigation    
Commitments and contingencies    
Estimate of possible loss 0  
Minimum | Non-Income Tax Contingencies    
Commitments and contingencies    
Estimate of possible loss 0  
Maximum | Value-added tax assessments and other civil litigation    
Commitments and contingencies    
Estimate of possible loss 1,900,000  
Maximum | Non-Income Tax Contingencies    
Commitments and contingencies    
Estimate of possible loss 3,200,000  
Pending Litigation    
Commitments and contingencies    
Accrued liabilities $ 1,600,000 $ 1,500,000