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ASSET RETIREMENT OBLIGATIONS (Tables)
12 Months Ended
Dec. 31, 2024
Asset Retirement Obligation Disclosure [Abstract]  
Schedule of Asset Retirement Obligations
AROs at December 31, 2024 and 2023 were (in thousands): 
 20242023
Asset retirement obligations  $14,109 $16,215 
Less: Asset retirement obligations due within one year (1)  
747 2,576 
Long-term asset retirement obligations (2)
$13,362 $13,639 
(1)
Classified as a current liability on the consolidated balance sheets, under the caption “Other current liabilities.” Balance at December 31, 2024 related to remediation work planned for 2025.
(2)
Classified as a long-term liability on the consolidated balance sheets, under the caption “Other noncurrent liabilities.” Balance at December 31, 2024.
Schedule of Change in Asset Retirement Obligation
During the years ended December 31, 2024, 2023 and 2022, our ARO changed as follows (in thousands): 
 202420232022
Balance as of January 1$16,215 $18,113 $13,745 
Accretion of discount1,112 1,104 1,830 
Change in estimates of existing obligations 20 1,366 4,138 
Settlement of obligations(1,936)(4,756)(455)
Foreign currency translation (1,302)388 (1,145)
Balance as of December 31$14,109 $16,215 $18,113