XML 48 R38.htm IDEA: XBRL DOCUMENT v3.21.1
Asset Retirement and Reclamation Liabilities (Tables)
3 Months Ended
Mar. 31, 2021
Asset Retirement and Reclamation Liabilities  
Summary of activity in the Velardena Properties ARO

 

 

 

 

 

 

 

 

 

 

Quarter Ended

 

 

 

March 31,

 

 

    

2021

    

2020

 

 

 

(in thousands)

 

Beginning balance

 

$

3,156

 

$

2,825

 

 

 

 

 

 

 

 

 

Changes in estimates, and other

 

 

(86)

 

 

82

 

Accretion expense

 

 

66

 

 

59

 

Ending balance

 

$

3,136

 

$

2,966