Inventories (Tables)

6 Months Ended

Jun. 30, 2020

Inventory Disclosure [Abstract]

Inventory Components

Inventories consisted of the following:

	June 30, 2020			December 31, 2019
Raw materials	$	20,021		$	13,514
Supplies and service parts	22,787			21,840
Finished products	34,681			36,969
Inventory at FIFO cost	77,489			72,323
Excess of FIFO cost over LIFO cost	(3,836		)	(4,072		)
Total inventory, net	$	73,653		$	68,251