Inventory

3 Months Ended

Mar. 31, 2020

Inventory [Abstract]

Inventory

(3)Inventory

Inventories are stated at the lower of cost or net realizable value. The Company applies net realizable value and obsolescence to the gross value of the inventory. Cost is determined using the first-in, first-out or weighted-average cost methods for finished goods and work-in-process. Supplies and consumables primarily consist of products used in our services provided to customers. The components of the inventory balances are as follows (in thousands):

	March 31, 2020		December 31, 2019
Finished goods	$	50,224	$	45,127
Raw materials		16,151		16,130
Work-in-process		9,542		9,360
Supplies and consumables		35,038		33,322
Total	$	110,955	$	103,939