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Inventories
3 Months Ended
Mar. 31, 2019
Inventory Disclosure [Abstract]  
Inventories INVENTORIES
Inventories, valued at the lower of cost (first-in, first-out (FIFO) method) or market, consisted of the following at:
 March 31,December 31,
(In thousands)20192018
Raw materials$270,119 $284,467 
Work in process11,597 12,291 
Finished goods42,806 43,857 
Inventories, net$324,522 $340,615