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Property, Plant And Equipment (Tables)
12 Months Ended
Dec. 31, 2020
Disclosure of detailed information about property, plant and equipment [abstract]  
Property, Plant and Equipment The Company’s property, plant and equipment as at December 31, 2020 and 2019 are as follows:
    
 
Property,
plant and equipment GK
 
  
 
Assets under
construction GK
 
  
 
Property,
plant and
equipment KNP
 
  
 
Exploration and
evaluation assets KNP
 
   
 
Assets under
construction KNP
 
   
 
Total
 
 
       
Cost
                           
       
At January 1, 2019
  $ 820,106  $ 4,894  $ 90  $ 166,947   $ 1,564   $ 993,601 
       
Decommissioning and restoration adjustment
   (1,604  
-
   
-
   1,919    
-
    315 
       
January 1, 2019 IFRS 16 lease additions
   2,670   
-
   
-
   
-
    
-
    2,670 
       
Additions/transfers*
   35,162   (4,164  
-
   
-
    
-
    30,998 
       
At December 31, 2019
   856,334   730   90   168,866    1,564    1,027,584  
       
Decommissioning and restoration adjustment
   9,777   
-
   
-
   278    
-
    10,055 
       
Additions/transfers*
   36,334   5,776   
-
   
-
    
-
    42,110 
       
At December 31, 2020
  
$
 902,445
 
 
$
 6,506
 
 
$
 90
 
 
$
 169,144
 
  
$
 1,564
 
  
$
 1,079,749
 
       
                            
       
Accumulated depreciation
                           
At January 1, 2019
  $ (152,350 $
-
  $ (10 $
-
   $
-
   $ (152,360
Depreciation and depletion**
   (87,190  
-
   (13  
-
    
-
    (87,203
Impairment loss
 
 
(115,753
)
 
 
-
 
 
 
-
 
 
 
-
 
 
 
-
 
 
 
(115,753
)
       
At December 31, 2019
   (355,293  
-
   (23  
-
    
-
    (355,316
       
Depreciation and depletion**
   (55,643  
-
   (13  
-
    
-
    (55,656
Impairment loss
 
 
(217,366
)
 
 
-
 
 
 
-
 
 
 
-
 
 
 
-
 
 
 
(217,366
)
       
At December 31, 2020
  
$
 (628,302
 
$
-
 
 
$
 (36
 
$
-
 
  
$
-
 
  
$
 (628,338
)
 
       
                            
       
Carrying amounts
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
  
 
 
 
       
At December 31, 2019
  $ 501,041  $ 730  $ 67  $ 168,866   $ 1,564   $ 672,268 
       
At December 31, 2020
  
$
 274,143
 
 
$
 6,506
 
 
$
 54
 
 
$
 169,144
 
  
$
 1,564
 
  
$
 451,411
 
 
*Included in additions of property, plant and equipment for GK is $28,939 (2019 - $23,896) related to deferred stripping of which $1,781 relates to the depreciation of earthmoving equipment (2019 - $1,778).
**Included in depreciation and depletion is $797 of depreciation on the
right-of-use
 
assets capitalized under IFRS 16 (2019 - $1,093).