Inventories (Tables)

6 Months Ended

Jun. 30, 2025

Inventory Disclosure [Abstract]

Inventories

Inventories consisted of the following: 

	June 30, 2025		June 30, 2024		Dec. 31, 2024
	(Dollars in thousands)
Raw materials	$	490,214	$	408,681	$	450,389
Work-in-process	231,578		190,661		199,030
Finished goods	788,044		706,234		530,406
Other	17,636		17,395		17,192
	1,527,472		1,322,971		1,197,017
Adjustment to value inventory at cost on the LIFO method	(268,961)		(317,382)		(268,961)
	$	1,258,511	$	1,005,589	$	928,056