Inventories (Tables)

12 Months Ended

Dec. 31, 2019

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories at LIFO value consist of the following as of December 31 (in thousands):

	2019			2018
Finished goods	$	42,281		$	46,638
Raw materials		31,686			27,321
Total FIFO inventories		73,967			73,959
Reserve to adjust inventories to LIFO value		(19,062	)		(18,442	)
Total LIFO inventories	$	54,905		$	55,517