SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Details) - USD ($) $ / shares in Units, $ in Thousands, shares in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2015	Sep. 30, 2016	Dec. 31, 2015
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Intangible assets		$ 101,959	$ 31,529
Long-term obligations		$ 776,766	$ 760,848
RETIREMENT OF COMMON STOCK
Common stock repurchased and retired (in shares)		1.1
Common stock, par value (in dollars per share)		$ 0.01	$ 0.01
Accounting Standards Update 201503
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
Intangible assets			$ (1,700)
Long-term obligations			$ (1,700)
Accounting principle change
New Accounting Pronouncements and Changes in Accounting Principles [Abstract]
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	$ 0.08