Inventories

12 Months Ended

Dec. 31, 2017

Inventories

Inventories

4. Inventories

The components of inventories were as follows:

(in thousands)	December 31,		December 31,
	2017		2016
Raw materials and supplies	$	72,342	$	55,424
Work-in-process		23,956		21,558
Finished goods		267,664		246,307
Inventories	$	363,962	$	323,289