Document and Entity Information - shares
6 Months Ended
Jun. 30, 2019
Jul. 25, 2019
Document and Entity Information    
Document Type 10-Q  
Document Quarterly Report true  
Document Transition Report false  
Document Period End Date Jun. 30, 2019  
Entity File Number 1-11846  
Entity Registrant Name APTARGROUP INC  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 36-3853103  
Entity Address, Address Line One 265 EXCHANGE DRIVE  
Entity Address, Address Line Two SUITE 100  
Entity Address, City or Town CRYSTAL LAKE  
Entity Address, State or Province IL  
Entity Address, Postal Zip Code 60014  
City Area Code 815  
Local Phone Number 477-0424  
Title of 12(b) Security Common Stock, $.01 par value  
Trading Symbol ATR  
Security Exchange Name NYSE  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Large Accelerated Filer  
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   64,041,237
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2019  
Document Fiscal Period Focus Q2  
Entity Central Index Key 0000896622  
Amendment Flag false