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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 |  |  |

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