Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Schedule Of 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)	2018		2017		2017
Raw materials	$	268,054	$	156,363	$	233,187
Work in process	22,144		9,004		10,408
Finished goods	33,747		23,653		31,153
Inventories, net	$	323,945	$	189,020	$	274,748