Inventories (Tables)

3 Months Ended

Mar. 29, 2019

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories on the Consolidated Balance Sheets are summarized as follows:

	March 29,		December 31,
(Thousands)	2019		2018
Raw materials and supplies	$	38,002	$	33,182
Work in process	194,548		195,879
Finished goods	36,838		30,643
Subtotal	$	269,388	$	259,704
Less: LIFO reserve balance	45,190		44,833
Inventories	$	224,198	$	214,871