XML 79 R62.htm IDEA: XBRL DOCUMENT v3.22.4
Investments (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 3 Months Ended 12 Months Ended
Jun. 28, 2022
Mar. 21, 2022
Jan. 31, 2023
Mar. 31, 2022
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Debt Securities, Available-for-sale [Abstract]              
Marketable Securities, Realized Gain (Loss)         $ (47,900) $ (10,400) $ (16,200)
Equity securities              
Investment in Marketable Securities (Textual) [Abstract]              
Cost         95,968 138,165  
Equity Securities, FV-NI, Unrealized Gain (Loss)       $ 0 0    
Equity Securities, FV-NI, Unrealized Gain       5,968 51,816    
Current liabilities         44,152 132,197  
Victoria Gold Corp | Equity securities              
Investment in Marketable Securities (Textual) [Abstract]              
Cost         70,560 128,710  
Equity Securities, FV-NI, Unrealized Gain (Loss)       0 0    
Equity Securities, FV-NI, Unrealized Gain       4,499 38,528    
Current liabilities         32,032 124,211  
Equity method investment, amount sold (in shares) 5,000,000            
Equity Method Investments, Sale of Stock, Price Per Share $ 8.34            
Proceeds from sale of equity method investments $ 40,500            
Equity method investment, realized loss on disposal $ 15,600            
Victoria Gold Corp | Equity securities | Subsequent Event              
Investment in Marketable Securities (Textual) [Abstract]              
Equity method investment, amount sold (in shares)     6,000,000        
Equity Method Investments, Sale of Stock, Price Per Share     $ 6.70        
Proceeds from sale of equity method investments     $ 39,800        
Integra Resources Corp. [Member] | Equity securities              
Investment in Marketable Securities (Textual) [Abstract]              
Cost         9,455 9,455  
Equity Securities, FV-NI, Unrealized Gain (Loss)       0 0    
Equity Securities, FV-NI, Unrealized Gain       $ 1,469 7,115    
Current liabilities         2,340 $ 7,986  
Avino Silver & Gold Mines Ltd | Equity securities              
Investment in Marketable Securities (Textual) [Abstract]              
Shares purchased during period, shares   14,000,000          
Investment owned, percent of assets   12.00%          
Cost         13,720    
Equity Securities, FV-NI, Unrealized Gain (Loss)         0    
Equity Securities, FV-NI, Unrealized Gain         4,199    
Current liabilities         9,521    
Other Investments [Member] | Equity securities              
Investment in Marketable Securities (Textual) [Abstract]              
Cost         2,233    
Equity Securities, FV-NI, Unrealized Gain (Loss)         0    
Equity Securities, FV-NI, Unrealized Gain         1,974    
Current liabilities         $ 259