Inventories (Tables)

12 Months Ended

Dec. 31, 2018

Inventory Disclosure [Abstract]

Inventories

Inventories as of December 31 consisted of the following:

	2018			2017
Inventories carried at LIFO:
Finished goods	$	48,607		$	43,439
Raw materials, production parts and work-in-process	28,581			23,694
Excess of FIFO over LIFO cost (a)	(31,199		)	(28,429		)
Total LIFO inventories	$	45,989		$	38,704
Inventories carried at FIFO:
Finished goods	$	53,520		$	54,161
Raw materials, production parts and work-in-process	35,624			34,829
Total FIFO inventories	$	89,144		$	88,990
Total inventories	$	135,133		$	127,694