ACQUISITIONS (Pro Forma) (Details) - Fusion Packaging - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Unaudited pro forma financial information
Net Sales	$ 699,305	$ 762,148	$ 1,428,821	$ 1,525,826
Net Income Attributable to AptarGroup, Inc.	$ 45,989	$ 75,811	$ 96,350	$ 139,003
Net Income per common share - basic	$ 0.72	$ 1.19	$ 1.50	$ 2.20
Net Income per common share - diluted	$ 0.69	$ 1.14	$ 1.45	$ 2.11

The pro forma basic net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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