Segment Information Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Segment Reporting Information [Line Items]
Net sales	$ 215,460	$ 224,310
Operating profit (loss)	9,990	21,930
Segment Reporting Information, Additional Information [Abstract]
Gain (Loss) on Disposition of Assets	10	(20)
Operating Segments [Member] | Packaging [Member]
Segment Reporting Information [Line Items]
Net sales	116,220	138,490
Operating profit (loss)	14,390	21,330
Operating Segments [Member] | Aerospace [Member]
Segment Reporting Information [Line Items]
Net sales	49,990	44,520
Operating profit (loss)	1,430	1,840
Operating Segments [Member] | Specialty Products [Member]
Segment Reporting Information [Line Items]
Net sales	49,250	41,300
Operating profit (loss)	9,750	7,240
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating profit (loss)	$ (15,580)	$ (8,480)