Inventories

Inventories are stated at the lower of cost or net realizable value. Cost is determined on the last-in, first-out (LIFO) basis for most U.S. inventories and the first-in, first-out (FIFO) basis for most non-U.S. inventories. Inventories at September 30, 2017 and December 31, 2016 consisted of the following:



	September 30, 2017			December 31, 2016
Raw materials	$	39,287		$	28,541
Work in process	6,620			6,498
Supplies and service parts	51,854			45,152
Finished products	32,664			24,678
Inventory at FIFO cost	130,425			104,869
Excess of FIFO cost over LIFO cost	(12,143		)	(12,143		)
Total inventory, net	$	118,282		$	92,726