Inventories (Tables)

6 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories consist of the following:

	June 30, 2019		December 31, 2018
Finished goods	$	51,127	$	50,999
Work in process	45,487		37,815
Raw materials and supplies	87,821		86,758
	$	184,435	$	175,572