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RECLAMATION LIABILITIES
 12 Months Ended
Dec. 31, 2021
Asset Retirement Obligation [Abstract]  
RECLAMATION LIABILITIES RECLAMATION LIABILITIES 
The Company is subject to various domestic and international laws and regulations governing the protection of the environment. These laws and regulations are continually changing and are generally becoming more restrictive. Estimated future reclamation costs are based principally on current legal and regulatory requirements.
Changes in Reclamation liabilities during the years ended December 31 were as follows (in thousands): 
2021 
2020
Balance, beginning of year $104,744 $80,838 
Liabilities assumed on the acquisition of Alacer (1)  
— 26,154 
Reclamation expenditures 
(243)(2,447)
Accretion expense  
4,821 3,815 
Additions, changes in estimate and other
15,722 (3,616)
Balance, end of year $125,044 $104,744 
Less: current portion (2,384)(2,023)
Non-current reclamation liabilities$122,660 $102,721 
(1)On September 16, 2020, the Company acquired Alacer, including Çöpler. Please refer to Note 3 for further details. The consideration included the assumption of reclamation liabilities of $26.2 million.