Goodwill and Other Intangible Assets Goodwill Rollforward (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2022 USD ($)
Goodwill [Roll Forward]
Balance, beginning	$ 315,490
Goodwill, Acquired During Period	32,210
Translation and purchase accounting adjustments	(2,690)
Balance, ending	345,010
Packaging [Member]
Goodwill [Roll Forward]
Balance, beginning	238,740
Goodwill, Acquired During Period	32,210
Translation and purchase accounting adjustments	(2,770)
Balance, ending	268,180
Aerospace [Member]
Goodwill [Roll Forward]
Balance, beginning	70,190
Goodwill, Acquired During Period	0
Translation and purchase accounting adjustments	80
Balance, ending	70,270
Specialty Products [Member]
Goodwill [Roll Forward]
Balance, beginning	6,560
Goodwill, Acquired During Period	0
Translation and purchase accounting adjustments	0
Balance, ending	$ 6,560