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Asset Retirement Obligations (Tables)
 9 Months Ended
Sep. 30, 2016
Asset Retirement Obligations  
Changes In Asset Retirement Obligation Liability

 

 

 

 

 

 

 

 

Balance as of January 1, 2016

 

$
54,727

Additional obligations

 

 
6,020

Accretion expense

 

 
1,359

Change in estimates

 

 
(69)

Payments

 

 
(2,771)

Foreign currency translation adjustments

 

 
(3,092)

Balance as of September 30, 2016

 

 
56,174

Less: current portion

 

 
8,978

Balance as of September 30, 2016, excluding current portion

 

$
47,196