Goodwill and Other Intangible Assets - Goodwill Rollforward (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Goodwill [Roll Forward]
Balance, beginning	$ 287,060	$ 293,910
Foreign currency translation	13,220	(6,850)
Balance, ending	300,280	287,060
Goodwill, Impaired, Accumulated Impairment Loss	58,660
Packaging [Member]
Goodwill [Roll Forward]
Balance, beginning	280,500	287,350
Foreign currency translation	13,220	(6,850)
Balance, ending	293,720	280,500
Goodwill, Impaired, Accumulated Impairment Loss	58,660
Specialty Products [Member]
Goodwill [Roll Forward]
Balance, beginning	6,560	6,560
Foreign currency translation	0	0
Balance, ending	6,560	$ 6,560
Goodwill, Impaired, Accumulated Impairment Loss	$ 0