Inventories (Tables)

6 Months Ended

Jun. 30, 2023

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following: 

	June 30, 2023		June 30, 2022		Dec. 31, 2022
	(Dollars in thousands)
Raw materials	$	524,993	$	362,950	$	409,349
Work-in-process	238,546		255,249		218,691
Finished goods	815,884		807,219		469,212
Other	16,433		16,881		16,463
	1,595,856		1,442,299		1,113,715
Adjustment to value inventory at cost on the LIFO method	(344,312)		(188,405)		(344,312)
	$	1,251,544	$	1,253,894	$	769,403