SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	3 Months Ended
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Policies)	Mar. 31, 2017
SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES
BASIS OF PRESENTATION	BASIS OF PRESENTATION The accompanying Unaudited Condensed Consolidated Financial Statements include the accounts of AptarGroup, Inc. and our subsidiaries. The terms “AptarGroup”, “Aptar” or “Company” as used herein refer to AptarGroup, Inc. and our subsidiaries. All significant intercompany accounts and transactions have been eliminated. In the opinion of management, the Unaudited Condensed Consolidated Financial Statements include all normal recurring adjustments necessary for a fair statement of consolidated financial position, results of operations, comprehensive income, changes in equity and cash flows for the interim periods presented. The accompanying Unaudited Condensed Consolidated Financial Statements have been prepared by the Company, pursuant to the rules and regulations of the Securities and Exchange Commission (“SEC”). Certain information and footnote disclosures normally included in financial statements prepared in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”) have been condensed or omitted pursuant to such rules and regulations, although the Company believes that the disclosures made are adequate to make the information presented not misleading. Also, certain financial position data included herein was derived from the Audited Consolidated Financial Statements included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016 but does not include all disclosures required by U.S. GAAP. Accordingly, these Unaudited Condensed Consolidated Financial Statements and related notes should be read in conjunction with the Audited Consolidated Financial Statements and notes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2016. The results of operations of any interim period are not necessarily indicative of the results that may be expected for the year.
ADOPTION OF RECENT ACCOUNTING PRONOUNCEMENTS	ADOPTION OF RECENT ACCOUNTING PRONOUNCEMENTS Changes to U.S. GAAP are established by the Financial Accounting Standards Board (“FASB”) in the form of Accounting Standards Updates (“ASUs”) to the FASB’s Accounting Standards Codification. In May 2014, the FASB amended the guidance for recognition of revenue from customer contracts. The core principle of the guidance is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in the amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In August 2015, the FASB decided to defer the effective date by one year to December 15, 2017 for annual reporting periods beginning after that date. The FASB also decided to allow early adoption of the standard, but not before the original effective date of December 15, 2016. Subsequent to the initial standards, the FASB has also issued several ASUs to clarify specific revenue recognition topics. We continue to evaluate the impact the adoption of this standard will have on our Consolidated Financial Statements. The majority of our revenues are derived from product sales and tooling sales and we are in the process of assessing the impact of the new guidance on these revenue streams. We are also evaluating our license, exclusivity and royalty arrangements, which will need to be reviewed individually to ensure proper accounting under the new standard. Based on our reviews performed to date, we continue to anticipate adopting the full retrospective transition method for implementing this guidance on the standard’s effective date. In July 2015, the FASB issued new guidance for simplifying the measurement of inventory. The core principle of the guidance is that an entity should measure inventory at the lower of cost and net realizable value. This standard is effective for annual reporting periods beginning after December 15, 2016. The Company has adopted the requirements of the standard and has determined that the impact is not material to our current year financial statements. In March 2016, the FASB issued guidance that eliminates the requirement that an investor retrospectively apply equity method accounting when an investment that it had accounted for by another method initially qualifies for the equity method. The guidance requires that an equity method investor add the cost of acquiring the additional interest in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. The new standard is effective for fiscal years and interim periods beginning after December 15, 2016. The adoption of the new rules did not have an impact on our financial statements. In March 2016, the FASB issued guidance that changes the accounting for certain aspects of share-based payments to employees. The guidance requires the recognition of the income tax effects of awards in the income statement when the awards vest or are settled, thus eliminating additional paid in capital pools. The guidance also allows for the employer to repurchase more of an employee’s shares for tax withholding purposes without triggering liability accounting. In addition, the guidance allows for a policy election to account for forfeitures as they occur rather than on an estimated basis. The new standard is effective for fiscal years and interim periods beginning after December 15, 2016. The Company has prospectively adopted the standard resulting in $2.7 million of additional tax deductions that would have been previously recorded in stockholders’ equity now being reported as a reduction in tax expense for the quarter ended March 31, 2017. The amount of excess tax benefits and deficiencies recognized in the provision for income taxes will fluctuate from period to period based on the price of the Company’s stock, the volume of share-based instruments settled or vested, and the value assigned to share-based instruments under U.S. GAAP. We have also prospectively adopted the standard for the presentation of the condensed consolidated statements of cash flows. The impact of excess tax benefits from exercise of stock options is now shown within cash flows from operating activities instead of cash flows from financing activities. In addition, the Company has elected to continue its current practice of estimating expected forfeitures. Other accounting standards that have been issued by the FASB or other standards-setting bodies did not have a material impact on our Consolidated Financial Statements.
RETIREMENT OF COMMON STOCK	RETIREMENT OF COMMON STOCK During the first quarter of 2017 and 2016, the Company repurchased and immediately retired 210 thousand and 113 thousand shares of common stock, respectively. Common stock was reduced by the number of shares retired at $0.01 par value per share. The excess of purchase price over par value may be charged entirely to retained earnings or may be allocated between additional paid-in capital and retained earnings. The Company has elected to allocate the excess purchase price over par value between additional paid-in capital and retained earnings.
INCOME TAXES	INCOME TAXES The Company computes taxes on income in accordance with the tax rules and regulations of the many taxing authorities where income is earned. The income tax rates imposed by these taxing authorities may vary substantially. Taxable income may differ from pre-tax income for financial accounting purposes. To the extent that these differences create differences between the tax basis of an asset or liability and our reported amount in the financial statements, an appropriate provision for deferred income taxes is made. In making the determination of which foreign earnings are permanently reinvested in foreign operations, the Company considers numerous factors, including the financial requirements of the U.S. parent company and those of our foreign subsidiaries, the U.S. funding needs for dividend payments and stock repurchases, and the tax consequences of remitting earnings to the U.S. From this analysis, current year repatriation decisions are made in an attempt to provide a proper mix of debt and stockholder capital both within the U.S. and for non-U.S. operations. During 2016, the Company decided to repatriate a portion of our 2016 and 2017 foreign earnings. In the first quarter of 2017, the Company repatriated $263 million, most of which was used to reduce existing debt levels and fund stock repurchases. To better balance our capital structure, the Company is also planning to repatriate an additional $750 million of earnings previously designated as indefinitely reinvested, and therefore has removed the indefinite reinvestment assertion on such amounts. There are no significant tax consequences expected from either repatriation due to the amount of tax credits associated with the repatriation under current U.S. tax law. The Company maintains its assertion that the approximately $550 million of remaining foreign earnings are permanently reinvested. As such, the Company does not provide for taxes on these earnings. The Company provides a liability for the amount of unrecognized tax benefits from uncertain tax positions. This liability is provided whenever the Company determines that a tax benefit will not meet a more-likely-than-not threshold for recognition. See Note 4 of the Unaudited Notes to the Condensed Consolidated Financial Statements for more information.

Disclosure of accounting policy for income taxes, which may include its accounting policies for recognizing and measuring deferred tax assets and liabilities and related valuation allowances, recognizing investment tax credits, operating loss carryforwards, tax credit carryforwards, and other carryforwards, methodologies for determining its effective income tax rate and the characterization of interest and penalties in the financial statements.