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Inventories (Tables)
3 Months Ended
Mar. 31, 2015
Inventories [Abstract]  
Schedule of Inventories
(In thousands) March 31,
2015
    December 31,
2014

 
       
Raw materials and component parts $ 31,282     $ 36,383  
Finished goods   73,272       65,943  
                 
    $ 104,554     $ 102,326