GOODWILL AND OTHER INTANGIBLE ASSETS - Schedule of Goodwill (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2023 USD ($)
Changes in the carrying amount of goodwill
Goodwill, beginning balance	$ 945,632
Reclassification due to segment change	0
Acquisitions	3,769
Foreign currency exchange effects	(6,364)
Goodwill, ending balance	943,037
Operating segment | Aptar Pharma
Changes in the carrying amount of goodwill
Goodwill, beginning balance	498,742
Reclassification due to segment change	0
Acquisitions	0
Foreign currency exchange effects	(5,191)
Goodwill, ending balance	493,551
Operating segment | Aptar Beauty
Changes in the carrying amount of goodwill
Goodwill, beginning balance	319,011
Reclassification due to segment change	(39,472)
Acquisitions	3,655
Foreign currency exchange effects	(1,025)
Goodwill, ending balance	282,169
Operating segment | Aptar Closures
Changes in the carrying amount of goodwill
Goodwill, beginning balance	127,879
Reclassification due to segment change	39,472
Acquisitions	114
Foreign currency exchange effects	(148)
Goodwill, ending balance	$ 167,317