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Production costs by nature
 12 Months Ended
Dec. 31, 2019
Analysis of income and expense [abstract]  
Production costs by nature
Production costs by nature

 
 
2019

 
2018

 
 
$

 
$

 
 
 
 
 
Raw materials and consumables
 
294,844

 
267,681

Salaries and employee benefits
 
82,824

 
94,794

Contractors
 
36,534

 
33,258

Equipment rental
 
22,598

 
3,545

Other
 
28,828

 
25,918

Silver credits
 
(3,028
)
 
(2,726
)
Change in inventories
 
(23,865
)
 
(16,699
)
Capitalized to mining interests
 
(64,557
)
 
(55,326
)
 
 
374,178

 
350,445



Salaries and employee benefits expense included in general and administrative costs were $33 million for the year ended December 31, 2019 (2018 - $27 million).