Inventories

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories

The components of inventories consisted of:

	June 30, 2018		December 31, 2017
Finished goods	$	77,144	$	79,649
Work-in-process	103,909		97,276
Raw material and supplies	69,994		65,037
	$	251,047	$	241,962