Goodwill and Other Intangible Assets Goodwill Rollforward (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2026 USD ($)
Goodwill [Roll Forward]
Balance, beginning	$ 300,280
Translation and purchase accounting adjustments	(2,390)
Balance, ending	297,890
Goodwill, Impaired, Accumulated Impairment Loss	58,660
Packaging [Member]
Goodwill [Roll Forward]
Balance, beginning	293,720
Translation and purchase accounting adjustments	(2,390)
Balance, ending	291,330
Goodwill, Impaired, Accumulated Impairment Loss	58,660
Specialty Products [Member]
Goodwill [Roll Forward]
Balance, beginning	6,560
Translation and purchase accounting adjustments	0
Balance, ending	6,560
Goodwill, Impaired, Accumulated Impairment Loss	$ 0