Inventories

3 Months Ended

Mar. 31, 2025

Inventory Disclosure [Abstract]

Inventories

Inventories

Inventories consisted of the following: 

	March 31, 2025		March 31, 2024		Dec. 31, 2024
	(Dollars in thousands)
Raw materials	$	440,846	$	395,261	$	450,389
Work-in-process	214,285		209,296		199,030
Finished goods	651,648		652,724		530,406
Other	17,463		17,341		17,192
	1,324,242		1,274,622		1,197,017
Adjustment to value inventory at cost on the LIFO method	(268,961)		(317,382)		(268,961)
	$	1,055,281	$	957,240	$	928,056