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RETIREMENT AND DEFERRED COMPENSATION PLANS - Other Plans Narrative (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
United States |  |  |
Defined contribution plan |  |  |
Total contributions by company | $ 5.0 | $ 5.0 | $ 5.0
United States | Aptar Retirement Savings Account |  |  |
Defined contribution plan |  |  |
Total contributions by company | $ 3.3 | 2.7 | 2.0
United States | Maximum |  |  |
Defined contribution plan |  |  |
Employer matching contribution as a percentage of salary | 3.00% |  |
United States | Maximum | Aptar Retirement Savings Account |  |  |
Defined contribution plan |  |  |
Employer matching contribution as a percentage of salary | 5.00% |  |
United States | Other Plans |  |  |
Defined contribution plan |  |  |
Liability, defined benefit plan | $ 14.2 | 14.8 |
Foreign Plans |  |  |
Defined contribution plan |  |  |
Total contributions by company | $ 3.0 | $ 3.1 | $ 2.9

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