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Inventories (Tables)
6 Months Ended
Jun. 30, 2014
Inventories [Abstract]  
Schedule of Inventories
(In thousands)   June 30,
2014
    December 31,
2013
 
             
Raw materials and component parts   $ 40,798     $ 47,800  
Finished goods     84,732       69,547  
                 
    $ 125,530     $ 117,347