CONDENSED CONSOLIDATED STATEMENTS OF INCOME (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Income Statement [Abstract]
Net Sales	$ 811,032	$ 699,305	$ 1,587,786	$ 1,420,858
Operating Expenses:
Cost of sales (exclusive of depreciation and amortization shown below)	523,050	441,702	1,011,755	892,958
Selling, research & development and administrative	140,913	123,365	275,261	249,557
Depreciation and amortization	57,790	56,429	115,228	107,235
Restructuring initiatives	4,876	7,331	8,548	12,170
​Total Operating Expenses	726,629	628,827	1,410,792	1,261,920
Operating Income	84,403	70,478	176,994	158,938
Other Income (Expense):
Interest expense	(7,175)	(8,734)	(14,590)	(17,122)
Interest income	624	175	1,005	350
Net investment (loss) gain	(1,611)	0	15,198	0
Equity in results of affiliates	81	(328)	(434)	(1,127)
Miscellaneous, net	(2,028)	(923)	(2,991)	(2,335)
​Total Other Expense	(10,109)	(9,810)	(1,812)	(20,234)
Income before Income Taxes	74,294	60,668	175,182	138,704
Provision for Income Taxes	19,020	18,808	35,969	41,594
Net Income	55,274	41,860	139,213	97,110
Net Loss (Income) Attributable to Noncontrolling Interests	2	(21)	15	(18)
Net Income Attributable to AptarGroup, Inc.	$ 55,276	$ 41,839	$ 139,228	$ 97,092
Net Income Attributable to AptarGroup, Inc. per Common Share:
Basic (in dollars per share)	$ 0.84	$ 0.65	$ 2.12	$ 1.51
Diluted (in dollars per share)	$ 0.81	$ 0.63	$ 2.05	$ 1.47
Average Number of Shares Outstanding:
Basic (in shares)	65,818	64,262	65,525	64,135
Diluted (in shares)	68,086	66,384	67,869	66,246
Dividends per Common Share (in dollars per share)	$ 0.38	$ 0.36	$ 0.74	$ 0.72