Inventories (Tables)

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Inventory Components

Inventories consisted of the following:

	December 31,
	2019			2018
Raw materials	$	13,514		$	8,229
Supplies and service parts	21,840			21,841
Finished products	36,969			36,692
Inventory at FIFO cost, net	72,323			66,762
Excess of FIFO cost over LIFO cost	(4,072		)	(4,483		)
Total inventory, net	$	68,251		$	62,279