XML 125 R113.htm IDEA: XBRL DOCUMENT v3.21.1
Restricted Cash (Tables)
 3 Months Ended 12 Months Ended
Mar. 31, 2021
Dec. 31, 2020
Cash and Cash Equivalents [Abstract]    
Components of restricted cash
The following table provides the components of Restricted cash (dollars in thousands):
March 31,
2021		December 31,
2020
Reclamation surety bond cash collateral$39,700 $39,677 
The following table provides the components of restricted cash (in thousands):
December 31,
2020		December 31,
2019
Reclamation surety bond cash collateral$39,677 $39,477 
First Lien Agreement restricted cash - Note 10— 3,270 
Total$39,677 $42,747