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Commitments and Contigencies (Details Textual)
ozt in Millions
12 Months Ended 36 Months Ended
Jan. 01, 2027
Oct. 02, 2014
USD ($)
Dec. 31, 2024
USD ($)
shares
Dec. 31, 2023
USD ($)
shares
Dec. 31, 2022
USD ($)
Dec. 31, 2026
Mar. 28, 2025
USD ($)
Apr. 03, 2024
shares
Apr. 02, 2024
USD ($)
Mar. 28, 2024
ozt
shares
Feb. 26, 2024
shares
Jan. 01, 2024
USD ($)
Jan. 01, 2023
USD ($)
Jan. 01, 2022
USD ($)
Business Acquisition [Line Items]                            
Valued-added Tax Outstanding     $ 26,000,000                      
Revenue Recognized     $ 55,562,000 $ 25,468,000 $ 15,887,000                  
Common stock, shares issued (in shares) | shares     399,235,632 386,282,957             7,704,725      
Common stock fair value     $ 3,992,000 $ 3,863,000                    
Surety Bonds Outstanding     363,700,000 324,800,000                    
Kensington Royalty Matter | Settled Litigation                            
Business Acquisition [Line Items]                            
Royalty payment | ozt                   2        
Common stock, shares issued (in shares) | shares               737,210            
Common stock fair value                 $ 3,000,000          
Kensington Royalty Matter | Settled Litigation | Forecast                            
Business Acquisition [Line Items]                            
Royalty payment rate 1.50%         1.25%                
Common stock fair value             $ 3,750,000              
Maximum | Kensington Royalty Matter | Settled Litigation                            
Business Acquisition [Line Items]                            
Common stock, shares issued (in shares) | shares                   2,455,000        
Palmarejo gold production royalty                            
Business Acquisition [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 Acquisition [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 Acquisition [Line Items]                            
Revenue Recognized     (182,918,000) (100,000,000) (26,020,000)                  
Revenue liability     42,164,000 55,082,000 $ 25,016,000             $ 55,082,000 $ 25,016,000 $ 15,016,000
Kensington | December 2023 Prepayment                            
Business Acquisition [Line Items]                            
Revenue liability     25,000,000                      
Rochester | September 2023 Prepayment                            
Business Acquisition [Line Items]                            
Revenue liability       17,500,000                    
Rochester | June 2024 Prepayment                            
Business Acquisition [Line Items]                            
Revenue liability     17,500,000                      
Wharf | September 2023 Prepayment                            
Business Acquisition [Line Items]                            
Revenue liability       $ 12,500,000                    
Wharf | June 2024 Prepayment                            
Business Acquisition [Line Items]                            
Revenue liability     $ 12,500,000