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Asset Retirement Obligations (Tables)
 6 Months Ended
Jun. 30, 2017
Asset Retirement Obligations  
Changes In Asset Retirement Obligation Liability

 

 

 

 

 

 

(In thousands)

Asset retirement obligations as of January 1, 2017

    

$

54,907

Additional obligations

 

 

6,630

Estimated obligations assumed in acquisitions

 

 

7,409

Accretion expense

 

 

872

Change in estimates

 

 

(108)

Payments

 

 

(3,304)

Foreign currency translation adjustments

 

 

1,519

Asset retirement obligations as of June 30, 2017

 

 

67,925

Less: current portion of asset retirement obligations

 

 

10,829

Asset retirement obligations, excluding current portion, as of June 30, 2017

 

$

57,096