Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Composition of Inventories

The composition of inventories was as follows:

	December 31
(In thousands)	2017		2016
Finished products	$	117,529	$	127,597
Raw materials		55,219		46,066
Total inventories	$	172,748	$	173,663