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Asset Retirement Obligations (Tables)
 12 Months Ended
Dec. 31, 2019
Asset Retirement Obligation Disclosure [Abstract]  
Changes In Asset Retirement Obligation Liability
The changes in the Company’s ARO liability consisted of the following:
 
December 31, 2019
 
December 31, 2018
 
(In thousands)
Beginning balance asset retirement obligations
$
61,223

 
$
69,757

Additional obligations
3,721

 
9,914

Accretion expense
1,540

 
1,861

Change in estimates
—

 
462

Payments
(6,041
)
 
(16,694
)
Foreign currency translation adjustments
752

 
(4,077
)
Ending balance asset retirement obligations
61,195

 
61,223

Less: current portion of asset retirement obligations
5,701

 
6,810

Ending balance asset retirement obligations, excluding current portion
$
55,494

 
$
54,413