CONDENSED CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Income Statement [Abstract]
Net Sales	$ 892,997	$ 836,860	$ 2,648,970	$ 2,526,335
Operating Expenses:
Cost of sales (exclusive of depreciation and amortization shown below)	566,691	546,376	1,697,824	1,638,114
Selling, research & development and administrative	138,137	135,428	427,488	416,351
Depreciation and amortization	62,686	57,601	184,212	174,818
Restructuring initiatives	6,161	2,270	19,628	2,989
​Total Operating Expenses	773,675	741,675	2,329,152	2,232,272
Operating Income	119,322	95,185	319,818	294,063
Other (Expense) Income:
Interest expense	(9,984)	(9,756)	(29,900)	(30,668)
Interest income	946	752	2,266	2,029
Net investment (loss) gain	(1,240)	649	1,839	(1,084)
Equity in results of affiliates	1,002	178	1,514	(184)
Miscellaneous income (expense), net	3	(2,093)	(1,341)	(3,144)
​Total Other Expense	(9,273)	(10,270)	(25,622)	(33,051)
Income before Income Taxes	110,049	84,915	294,196	261,012
Provision for Income Taxes	25,751	30,738	72,265	80,851
Net Income	84,298	54,177	221,931	180,161
Net (Gain) Loss Attributable to Noncontrolling Interests	(2)	67	201	131
Net Income Attributable to AptarGroup, Inc.	$ 84,296	$ 54,244	$ 222,132	$ 180,292
Net Income Attributable to AptarGroup, Inc. per Common Share:
Basic (in dollars per share)	$ 1.28	$ 0.83	$ 3.39	$ 2.75
Diluted (in dollars per share)	$ 1.26	$ 0.81	$ 3.32	$ 2.70
Average Number of Shares Outstanding:
Basic (in shares)	65,707	65,322	65,550	65,446
Diluted (in shares)	67,035	66,581	66,865	66,825
Dividends per Common Share (in dollars per share)	$ 0.41	$ 0.38	$ 1.17	$ 1.14