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Inventory and Ore on Leach Pads (Tables)
 6 Months Ended
Jun. 30, 2017
Inventory Disclosure [Abstract]  
Inventories
Inventory consists of the following:
In thousands
June 30, 2017
 
December 31, 2016
Inventory:
 
 
 
Concentrate
$
10,746

 
$
17,994

Precious metals
18,957

 
47,228

Supplies
38,192

 
40,804

 
$
67,895

 
$
106,026

Ore on leach pads:
 
 
 
Current
$
75,699

 
$
64,167

Non-current
69,954

 
67,231

 
$
145,653

 
$
131,398

Total inventory and ore on leach pads
$
213,548

 
$
237,424