QUARTERLY DATA (UNAUDITED) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
QUARTERLY DATA (UNAUDITED)
Net Sales	$ 538,868	$ 589,729	$ 619,999	$ 582,338	$ 546,773	$ 586,290	$ 594,275	$ 589,811	$ 2,330,934	$ 2,317,149	$ 2,597,809
Gross profit	149,576	171,574	192,495	173,734	152,584	170,498	185,917	170,853	687,379	679,852
Net Income	49,587	53,100	59,051	43,866	43,393	53,262	57,541	45,099	205,604	199,295	191,624
Net Income Attributable to AptarGroup, Inc.	$ 49,581	$ 53,098	$ 59,048	$ 43,863	$ 43,391	$ 53,247	$ 57,539	$ 45,171	$ 205,590	$ 199,348	$ 191,658
Net Income Attributable to AptarGroup, Inc. Per Common Share:
Basic (in dollars per share)	$ 0.79	$ 0.84	$ 0.94	$ 0.70	$ 0.69	$ 0.85	$ 0.92	$ 0.73	$ 3.27	$ 3.19	$ 2.95
Diluted (in dollars per share)	0.77	0.82	0.91	0.67	0.68	0.83	0.90	0.70	3.17	3.09	$ 2.85
Dividends per Common Share (in dollars per share)	0.32	0.30	0.30	0.30	0.30	0.28	0.28	0.28	1.22	1.14
Stock price high (in dollars per share)	78.10	81.50	80.36	79.04	75.96	70.34	66.31	67.68	81.50	75.96
Stock price low (in dollars per share)	$ 70.32	$ 75.01	$ 74.16	$ 66.33	$ 65.79	$ 60.73	$ 61.98	$ 61.39	$ 66.33	$ 60.73
Average number of shares outstanding:
Basic (in shares)	62,586	62,858	63,053	62,722	62,461	62,886	62,697	62,292	62,804	62,585	65,009
Diluted (in shares)	64,220	64,690	64,785	65,063	64,266	64,454	64,276	64,494	64,849	64,492	67,292