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Inventories
6 Months Ended
Jun. 30, 2013
Inventories [Abstract]  
Inventories
4.  Inventories

      Inventories consist of the following:
 
 
 
June 30,
 
 
December 31,
 
 
 
2013
 
 
2012
 
 
 
 
 
 
 
 
Raw materials
 
$
17,478
 
 
$
14,946
 
Work in progress
 
 
21,683
 
 
 
20,012
 
Manufactured and purchased components
 
 
22,136
 
 
 
18,702
 
Finished goods
 
 
32,102
 
 
 
30,988
 
Product inventory
 
 
93,399
 
 
 
84,648
 
Capitalized contract costs
 
 
11,501
 
 
 
5,391
 
Total inventories
 
$
104,900
 
 
$
90,039
 
 
Inventories include capitalized contract costs relating to programs and contracts with long-term production cycles, substantially all of which are not expected to be realized within one year.  The Company believes these amounts will be fully recovered.