Goodwill and Other Intangible Assets - Schedule of the Changes in Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2024 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 1,810,654	[1]
Foreign currency translation	(7,447)
Measurement period adjustments	(7,130)
Goodwill, ending balance	1,796,077
All Other
Goodwill [Roll Forward]
Goodwill, beginning balance	248,007
Foreign currency translation	(212)
Measurement period adjustments	0
Goodwill, ending balance	247,795
Consumer Packaging | Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance	1,056,241
Foreign currency translation	(4,427)
Measurement period adjustments	(7,130)
Goodwill, ending balance	1,044,684
Industrial Paper Packaging | Operating Segments
Goodwill [Roll Forward]
Goodwill, beginning balance	506,406
Foreign currency translation	(2,808)
Measurement period adjustments	0
Goodwill, ending balance	$ 503,598

[1] The year-end condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America (the “United States” or “U.S.”).