STOCK-BASED COMPENSATION - Assumptions Used (Details) - Performance-Based RSUs - $ / shares	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award
Fair value per stock award (in dollars per share)	$ 145.79	$ 116.17	$ 141.95
Grant date stock price (in dollars per share)	$ 141.00	$ 111.38	$ 114.52
Aptar's stock price expected volatility	18.80%	20.00%	20.20%
Expected average volatility of peer companies	34.80%	39.70%	41.70%
Correlation assumption	30.70%	33.30%	41.20%
Risk-free interest rate	4.51%	3.83%	2.04%
Dividend yield assumption	1.16%	1.36%	1.33%