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Inventories
3 Months Ended
Mar. 31, 2018
Inventory Disclosure [Abstract]  
Inventories
  3. Inventories:

 

Inventories consist of the following:

 

(In thousands)   March 31,
 2018
    December 31,
2017
 
Raw materials and component parts   $ 48,044     $ 46,884  
Finished goods     93,209       90,174  
                 
    $ 141,253     $ 137,058