Goodwill and Other Intangible Assets Goodwill Rollforward (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Goodwill [Roll Forward]
Balance, beginning	$ 363,770
Translation and purchase accounting adjustments	(2,510)
Balance, ending	361,260
Packaging [Member]
Goodwill [Roll Forward]
Balance, beginning	287,350
Translation and purchase accounting adjustments	(2,350)
Balance, ending	285,000
Aerospace [Member]
Goodwill [Roll Forward]
Balance, beginning	69,860
Translation and purchase accounting adjustments	(160)
Balance, ending	69,700
Specialty Products [Member]
Goodwill [Roll Forward]
Balance, beginning	6,560
Translation and purchase accounting adjustments	0
Balance, ending	$ 6,560