Inventories (Tables)

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories valued at LIFO (last-in, first-out), consist of the following (in thousands):

	September 30, 2018			December 31, 2017
Finished goods	$	30,936		$	32,986
Raw materials		22,419			19,432
Total FIFO (first-in, first-out) inventories		53,355			52,418
Reserve to adjust inventories to LIFO value		(20,070	)		(20,070	)
Total LIFO inventories	$	33,285		$	32,348