v3.25.2
Commitments and Contigencies (Details Textual)
ozt in Millions
3 Months Ended 6 Months Ended 36 Months Ended
Jan. 01, 2027
Oct. 02, 2014
USD ($)
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
Jun. 30, 2025
USD ($)
shares
Jun. 30, 2024
USD ($)
Dec. 31, 2026
Mar. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
shares
Apr. 03, 2024
shares
Mar. 31, 2024
USD ($)
Mar. 28, 2024
ozt
Dec. 31, 2023
USD ($)
Business Combination [Line Items]                          
Valued-added Tax Outstanding     $ 27,900,000   $ 27,900,000                
Revenue Recognized     $ 192,000 $ 118,000 $ 42,508,000 $ 55,277,000              
Common stock, shares issued (in shares) | shares     642,701,753   642,701,753       399,235,632        
Common stock fair value     $ 6,426,000   $ 6,426,000       $ 3,992,000        
Surety Bonds Outstanding     363,900,000   363,900,000       363,700,000        
Minimum                          
Business Combination [Line Items]                          
Estimate of possible loss     1,000,000   1,000,000                
Maximum                          
Business Combination [Line Items]                          
Estimate of possible loss     $ 13,000,000   $ 13,000,000                
Kensington Royalty Matter | Settled Litigation                          
Business Combination [Line Items]                          
Royalty payment | ozt                       2  
Common stock, shares issued (in shares) | shares     595,267   595,267         737,210      
Kensington Royalty Matter | Settled Litigation | Forecast                          
Business Combination [Line Items]                          
Royalty payment rate 1.50%           1.25%            
Palmarejo gold production royalty                          
Business Combination [Line Items]                          
Production to be sold, percent   50.00%                      
Price per ounce under agreement   $ 800                      
Aggregate deposit to be received   $ 22,000,000.0                      
Franco-Nevada Gold Stream Agreement                          
Business Combination [Line Items]                          
Production to be sold, percent   50.00%                      
Total consideration   $ 78,000,000                      
Payments to acquire businesses, gross   75,000,000                      
Common shares issued (value)   $ 3,000,000                      
Kensington                          
Business Combination [Line Items]                          
Revenue Recognized     $ 0 (42,005,000) $ (42,164,000) (97,005,000)              
Revenue liability     0 $ 43,282,000 0 $ 43,282,000   $ 0 $ 42,164,000   $ 55,112,000   $ 55,082,000
Rochester | June 2024 Prepayment                          
Business Combination [Line Items]                          
Revenue liability     17,500,000   17,500,000                
Wharf | June 2024 Prepayment                          
Business Combination [Line Items]                          
Revenue liability     $ 12,500,000   $ 12,500,000