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Inventories
3 Months Ended
Mar. 31, 2014
Inventory Disclosure [Abstract]  
Inventories
3.
Inventories
 
Inventories as of March 31, 2014 and December 31, 2013 were as follows:
 
In thousands
 
March 31,
2014
 
December 31,
2013
 
Raw materials
 
$
21,605
 
$
11,944
 
Work in process
 
 
16,693
 
 
14,546
 
Finished goods
 
 
18,014
 
 
9,537
 
 
 
 
56,312
 
 
36,027
 
Less: Progress billings
 
 
(1,454)
 
 
(1,110)
 
Total inventories
 
$
54,858
 
$
34,917
 
 
Included in work in process is gross tooling inventory of $8.7 million and $9.9 million at March 31, 2014 and December 31, 2013, respectively. Tooling inventory, net of progress billings, was $7.3 million and $8.8 million at March 31, 2014 and December 31, 2013, respectively.