INVENTORIES

6 Months Ended

Jun. 30, 2019

INVENTORIES

INVENTORIES

9.    INVENTORIES

Inventories consist of the following:

	June 30,		December 31,
(in thousands)	2019		2018
Raw materials and supplies	$	33,940	$	26,874
Work in process		8,903		10,671
Finished goods		8,061		9,225
Total inventories	$	50,904	$	46,770