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Rationalization Charges - Rationalization Charges by Business Segment (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 10,357	$ 2,799
Dispensing and Specialty Closures
Restructuring Cost and Reserve [Line Items]
Rationalization charges	5,231	742
Metal Containers
Restructuring Cost and Reserve [Line Items]
Rationalization charges	5,021	1,963
Custom Containers
Restructuring Cost and Reserve [Line Items]
Rationalization charges	$ 105	$ 94

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- Definition

Amount of restructuring charges, remediation cost, and asset impairment loss.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.3)
-URI http://asc.fasb.org/extlink&oid=120395209&loc=SL114868664-224227

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