GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill (Details) $ in Thousands	3 Months Ended
	Mar. 31, 2025 USD ($)
Changes in the carrying amount of goodwill
Goodwill, beginning balance	$ 936,256
Foreign currency exchange effects	18,036
Goodwill, ending balance	954,292
Operating segment | Aptar Pharma
Changes in the carrying amount of goodwill
Goodwill, beginning balance	488,234
Foreign currency exchange effects	13,528
Goodwill, ending balance	501,762
Operating segment | Aptar Beauty
Changes in the carrying amount of goodwill
Goodwill, beginning balance	281,286
Foreign currency exchange effects	3,947
Goodwill, ending balance	285,233
Operating segment | Aptar Closures
Changes in the carrying amount of goodwill
Goodwill, beginning balance	166,736
Foreign currency exchange effects	561
Goodwill, ending balance	$ 167,297