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ACQUISITIONS (Details) - USD ($) $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Oct. 01, 2021 | Sep. 30, 2021 | Sep. 20, 2021 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire businesses, net of cash acquired |  |  |  | $ 0 | $ 2,504 | $ 745,670
Goodwill |  |  |  | $ 2,018,241 | $ 1,984,952 | $ 2,038,408
Silgan Specialty Packaging |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire businesses, net of cash acquired |  |  | $ 484,900 |  |  |
Goodwill |  |  | 209,400 |  |  |
Silgan Specialty Packaging | Customer Relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Customer relationship intangible asset |  |  | 169,000 |  |  |
Silgan Specialty Packaging | Technology-Based Intangible Assets |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Customer relationship intangible asset |  |  | $ 3,400 |  |  |
Unicep Packaging LLC |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire businesses, net of cash acquired |  | $ 237,100 |  |  |  |
Goodwill |  | 142,600 |  |  |  |
Unicep Packaging LLC | Customer Relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Customer relationship intangible asset |  | 74,000 |  |  |  |
Unicep Packaging LLC | Technology-Based Intangible Assets |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Customer relationship intangible asset |  | 4,000 |  |  |  |
Unicep Packaging LLC | Trade names |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Customer relationship intangible asset |  | $ 3,600 |  |  |  |
Easytech Closures S.p.A. |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Payments to acquire businesses, net of cash acquired | $ 28,400 |  |  |  |  |
Goodwill | 12,900 |  |  |  |  |
Easytech Closures S.p.A. | Customer Relationships |  |  |  |  |  |
Business Acquisition [Line Items] |  |  |  |  |  |
Customer relationship intangible asset | $ 3,100 |  |  |  |  |

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