GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2025 USD ($)
Changes in the carrying amount of goodwill
Goodwill, beginning balance	$ 936,256
Foreign currency exchange effects	60,233
Goodwill, ending balance	996,489
Operating segment | Aptar Pharma
Changes in the carrying amount of goodwill
Goodwill, beginning balance	488,234
Foreign currency exchange effects	41,989
Goodwill, ending balance	530,223
Operating segment | Aptar Beauty
Changes in the carrying amount of goodwill
Goodwill, beginning balance	281,286
Foreign currency exchange effects	16,535
Goodwill, ending balance	297,821
Operating segment | Aptar Closures
Changes in the carrying amount of goodwill
Goodwill, beginning balance	166,736
Foreign currency exchange effects	1,709
Goodwill, ending balance	$ 168,445