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Inventories (Tables)
 3 Months Ended
Mar. 31, 2016
Inventory Disclosure [Abstract]  
Schedule of Inventory

Inventories at March 31, 2016 and December 31, 2015 consisted of the following:

(in thousands)
 
March 31,
2016
 
December 31, 2015
Raw material
 
$
1,164

 
$
819

Work-in-process
 
8,702

 
8,142

Finished goods (1)
 
12,359

 
33,784

Supplies
 
1,601

 
1,431

Total inventories
 
$
23,826

 
$
44,176

                                                  
(1)
The amount shown above includes the unamortized fair value adjustment of $12.0 million and $30.5 million at March 31, 2016 and December 31, 2015, respectively.