SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended		6 Months Ended	12 Months Ended			36 Months Ended
	Dec. 31, 2016 USD ($) $ / shares	Sep. 30, 2015 $ / shares shares	Jun. 30, 2015 USD ($) $ / shares	Dec. 31, 2016 USD ($) segment item $ / shares	Dec. 31, 2015 USD ($)	Dec. 31, 2014 USD ($)	Dec. 31, 2016 USD ($) $ / shares
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Number of reportable segments | segment				3
CASH MANAGEMENT
Maturity of the deposit				2 years
Penalty for early redemption				$ 0
INVESTMENTS IN AFFILIATED COMPANIES
Dividends received from affiliates							$ 0
Gain on sale of investment in unconsolidated affiliate	$ 2,000			$ 2,013
GOODWILL
Number of reportable units | item				4
Impairment of goodwill				$ 0
RETIREMENT OF TREASURY SHARES
Treasury stock shares retired | shares		20
Common stock, par value (in dollars per share) | $ / shares	$ 0.01	$ 0.01		$ 0.01			$ 0.01
RESEARCH & DEVELOPMENT EXPENSES
Research and development expenses incurred net of customer funded research and development or government research and development credits				$ 66,200	$ 67,100	$ 76,200
INCOME TAXES
Additional tax amounts to be recorded in connection with repatriation of foreign earnings	$ 0			0			$ 0
TRANSLATION OF FOREIGN CURRENCIES
Foreign Currency Transaction Gain (Loss), before Tax				(326)	(3,900)	$ (37)
ADOPTION OF RECENT ACCOUNTING PRONOUNCEMENTS
Intangible assets	94,489			94,489	31,529		94,489
Long-term obligations, net of unamortized debt issuance costs	$ 772,737			$ 772,737	760,848		$ 772,737
Minimum
CASH MANAGEMENT
Redemption period				35 days
Maximum
CASH MANAGEMENT
Redemption period				90 days
Accounting Standards Update 201503
ADOPTION OF RECENT ACCOUNTING PRONOUNCEMENTS
Intangible assets					(1,700)
Long-term obligations, net of unamortized debt issuance costs					$ (1,700)
Accounting principle change
CHANGE IN ACCOUNTING PRINCIPLE
Cumulative pre-tax effect			$ 7,400
Effect of change on net income attributable to AptarGroup			$ 4,800
Effect of change on net income attributable to AptarGroup per diluted share | $ / shares			$ 0.08
Buildings and improvements | Minimum
PROPERTY AND DEPRECIATION
Estimated useful lives				10 years
Buildings and improvements | Maximum
PROPERTY AND DEPRECIATION
Estimated useful lives				40 years
Machinery and equipment | Minimum
PROPERTY AND DEPRECIATION
Estimated useful lives				3 years
Machinery and equipment | Maximum
PROPERTY AND DEPRECIATION
Estimated useful lives				15 years
Patents, non-compete agreements and license agreements | Minimum
FINITE-LIVED INTANGIBLE ASSETS
Finite-Lived Intangible Asset, Useful Life				3 years
Patents, non-compete agreements and license agreements | Maximum
FINITE-LIVED INTANGIBLE ASSETS
Finite-Lived Intangible Asset, Useful Life				20 years