Inventories (Tables)

3 Months Ended

Mar. 31, 2018

Inventory Disclosure [Abstract]

Composition of Inventories

The composition of inventories at March 31, 2018, and December 31, 2017, was as follows: 

(In thousands)	March 31, 2018		December 31, 2017
Finished goods	$	128,474	$	117,529
Raw materials		59,263		55,219
Total inventories	$	187,737	$	172,748