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Commitments and Contingencies (Tables)
 9 Months Ended
Sep. 30, 2014
Commitments And Contingencies Disclosure [Abstract]  
Changes in Aggregate Carrying Amount of Asset Retirement Obligation Liability

The changes in the aggregate carrying amount of our ARO liability are as follows:

 

 

Nine months ended

September 30,

 

 

2014

 

 

2013

 

 

(In thousands)

 

Beginning balance

$

10,497

 

 

$

9,837

 

Accretion expense

 

403

 

 

 

377

 

Obligations settled

 

(73

)

 

 

—

 

Foreign currency translation, net

 

(362

)

 

 

93

 

Ending Balance

$

10,465

 

 

$

10,307