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Receivables (Tables)
 12 Months Ended
Dec. 31, 2017
Receivables [Abstract]  
Receivables
Receivables consist of the following:
In thousands
December 31, 2017
 
December 31, 2016
Current receivables:
 
 
 
Trade receivables
$
5,883

 
$
5,973

Income tax receivable
7

 
1,038

Value added tax receivable
10,982

 
44,150

Other
2,197

 
2,254

 
$
19,069

 
$
53,415

Non-current receivables:
 
 
 
Value added tax receivable
$
28,750

 
$
2,088

Income tax receivable
—

 
11,657

 
28,750

 
13,745

Total receivables
$
47,819

 
$
67,160