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Rationalization Charges - Rationalization Charges by Business Segment (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalization charges | $ 2,315 | $ 2,505 | $ 13,026 | $ 7,247
Dispensing and Specialty Closures |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalization charges | 406 | 787 | 5,704 | 2,229
Metal Containers |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalization charges | 1,822 | 1,639 | 7,068 | 4,755
Custom Containers |  |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |  |
Rationalization charges | $ 87 | $ 79 | $ 254 | $ 263

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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=123367319&loc=SL114868664-224227 + Details
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