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Restricted Cash (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Restricted Cash and Cash Equivalents Items [Line Items]    
Reclamation and other surety bond cash collateral $ 34,293 $ 39,677
Decrease in restricted cash due to collateral requirements 5,400  
Surety bond    
Restricted Cash and Cash Equivalents Items [Line Items]    
Guarantor obligations 59,300  
Hycroft Mine    
Restricted Cash and Cash Equivalents Items [Line Items]    
Guarantor obligations 58,300  
Water supply    
Restricted Cash and Cash Equivalents Items [Line Items]    
Guarantor obligations $ 1,000