Inventories (Tables)

12 Months Ended

Dec. 31, 2021

Inventory Disclosure [Abstract]

Summary of Inventories

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

	2021			2020
Finished goods	$	58,401		$	39,048
Raw materials		56,441			44,475
Total FIFO inventories		114,842			83,523
Reserve to adjust inventories to LIFO value		(36,467	)		(16,821	)
Total LIFO inventories	$	78,375		$	66,702