XML 145 R81.htm IDEA: XBRL DOCUMENT v3.20.1
Inventories (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2019
Dec. 31, 2018
Disclosure of inventories [Line Items]    
Total inventories $ 370,716 $ 214,465
Less: current portion of inventories (346,507) (214,465)
Non-current portion of inventories 24,209 0
Costs of inventories recognized as expense 1,121,471 683,598
Production costs 841,297 515,636
Depreciation and amortisation expense 253,453 147,289
NRV adjustments to inventory (400) 24,300
Inventories, at net realisable value 151,500 143,600
Escobal mine [member]    
Disclosure of inventories [Line Items]    
Supplies 16,900  
Concentrate [member]    
Disclosure of inventories [Line Items]    
Total inventories 17,433 19,286
Stockpile ore [member]    
Disclosure of inventories [Line Items]    
Total inventories 27,708 3,945
Non-current portion of inventories 1,200 2,500
Stockpile ore [member] | Manantial Espejo mine [member]    
Disclosure of inventories [Line Items]    
Impairment charge   (11,200)
Stockpile ore [member] | Manantial Espejo and Dolores mines [member]    
Disclosure of inventories [Line Items]    
Impairment charge 5,000  
Heap leach and in process [member]    
Disclosure of inventories [Line Items]    
Total inventories 169,751 113,199
Non-current portion of inventories 74,500 75,300
Heap leach and in process [member] | Manantial Espejo and Dolores mines [member]    
Disclosure of inventories [Line Items]    
Impairment charge 39,300 (28,900)
Dore and finished [member]    
Disclosure of inventories [Line Items]    
Total inventories 67,820 30,736
Dore and finished [member] | Manantial Espejo mine [member]    
Disclosure of inventories [Line Items]    
Impairment charge   (7,500)
Dore and finished [member] | Manantial Espejo and Dolores mines [member]    
Disclosure of inventories [Line Items]    
Impairment charge 2,900  
Materials and supplies [member]    
Disclosure of inventories [Line Items]    
Total inventories $ 88,004 $ 47,299