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ASSET RETIREMENT OBLIGATION (Tables)
 12 Months Ended
Dec. 31, 2018
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Activity Related to Asset Retirement Obligation
The following table presents the activity related to the Company’s asset retirement obligation:
(In thousands)
Years Ended December 31,
 
2018
 
2017
Beginning balance
$
47,984

 
$
42,491

Adjustment due to changes in estimates
1,297

 
2,317

Accretion of liability
3,273

 
3,555

Liabilities settled
(3,389
)
 
(2,880
)
Foreign Currency
(1,394
)
 
2,501

Ending balance
47,771

 
47,984

Less: current portion
445

 
891

Long-term portion of asset retirement obligation(1)
$
47,326

 
$
47,093


(1) Balance as of December 31, 2018 includes $3.3 million, which has been reclassified to Liabilities subject to compromise.