BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:	3 Months Ended
Jun. 30, 2018
Accounting Policies [Abstract]
BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:	BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES: These condensed consolidated financial statements have been prepared by Acxiom Corporation (“Registrant,” “Acxiom,” we, us or the “Company”), without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). In the opinion of the Registrant’s management, all adjustments necessary for a fair presentation of the results for the periods included have been made, and the disclosures are adequate to make the information presented not misleading. All such adjustments are of a normal recurring nature. Certain note information has been omitted because it has not changed significantly from that reflected in Notes 1 through 18 of the Notes to Consolidated Financial Statements filed as part of Item 8 of the Registrant’s annual report on Form 10-K for the fiscal year ended March 31, 2018 (“2018 Annual Report”), as filed with the SEC on May 25, 2018. This quarterly report and the accompanying condensed consolidated financial statements should be read in connection with the 2018 Annual Report. The financial information contained in this quarterly report is not necessarily indicative of the results to be expected for any other period or for the full fiscal year ending March 31, 2019. Management of the Company has made a number of estimates and assumptions relating to the reporting of assets and liabilities and the disclosure of contingent assets and liabilities to prepare these condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”). Actual results could differ from those estimates. Certain of the accounting policies used in the preparation of these condensed consolidated financial statements are complex and require management to make judgments and/or significant estimates regarding amounts reported or disclosed in these financial statements. Additionally, the application of certain of these accounting policies is governed by complex accounting principles and their interpretation. A discussion of the Company’s significant accounting principles and their application is included in Note 1 of the Notes to Consolidated Financial Statements and in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, of the Company’s 2018 Annual Report. Accounting Pronouncements Adopted During the Current Year In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606) and issued subsequent amendments to the initial guidance in August 2015, March 2016, April 2016, May 2016 and December 2016 within ASU 2015-14, ASU 2016-08, ASU 2016-10, ASU 2016-12 and ASU 2016-20, respectively. Topic 606 supersedes nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of the new guidance is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. We adopted Topic 606 as of April 1, 2018 using the modified retrospective method. See Note 2 for further details. In May 2017, the FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 719): Scope of Modification Accounting" ("ASU 2017-09"). ASU 2017-09 clarifies when changes to the terms or conditions of a stock-based payment award must be accounted for as modifications. ASU 2017-09 will reduce diversity in practice and result in fewer changes to the terms of an award being accounted for as modifications. Under ASU 2017-09, an entity will not apply modification accounting to a stock-based payment award if the award's fair value, vesting conditions and classification as an equity or liability instrument are the same immediately before and after the change. ASU 2017-09 will be applied prospectively to awards modified on or after the adoption date. The guidance is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. ASU 2017-09 is effective for the Company beginning in fiscal 2019. We adopted the standard in the current fiscal quarter, and adoption of this guidance did not have a material impact on our condensed financial statements and related disclosures. Recent Accounting Pronouncements Not Yet Adopted In January 2017, the FASB issued ASU 2017-04, "Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment" ("ASU 2017-04"), which eliminates step two from the goodwill impairment test. Under ASU 2017-04, an entity should recognize an impairment charge for the amount by which the carrying amount of a reporting unit exceeds its fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. ASU 2017-04 is effective for annual periods beginning after December 15, 2019 (fiscal 2021 for the Company), including interim periods within those fiscal years; earlier adoption is permitted for goodwill impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of this guidance to have a material impact on its condensed financial statements and related disclosures. In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)" ("ASU 2016-02"), as a comprehensive new standard that amends various aspects of existing guidance for leases and requires additional disclosures about leasing arrangements. The new standard will require lessees to recognize a right-of-use asset and a lease liability on the balance sheet for all leases except short-term leases. For lessees, leases will continue to be classified as either operating or financing in the income statement. Lessor accounting is similar to the current model but updated to align with certain changes to the lessee model. Lessors will continue to classify leases as operating, direct financing or sales-type leases. Subsequently, the FASB has issued various ASU's to provide further clarification around aspects of Topic 842. ASU 2016-02 is effective for annual periods beginning after December 15, 2018 (fiscal 2020 for the Company), including interim periods within those fiscal years, with early adoption permitted. We will adopt the new standard on April 1, 2019 using the modified retrospective approach. The Company is continuing to evaluate the impact of the adoption of this guidance on its condensed consolidated financial statements and related disclosures. The Company does not anticipate that the adoption of any other recent accounting pronouncements will have a material impact on the Company's consolidated financial position, results of operations or cash flows.

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES:

These condensed consolidated financial statements have been prepared by Acxiom Corporation (“Registrant,” “Acxiom,” we, us or the “Company”), without audit, pursuant to the rules and regulations of the Securities and Exchange Commission (the “SEC”). In the opinion of the Registrant’s management, all adjustments necessary for a fair presentation of the results for the periods included have been made, and the disclosures are adequate to make the information presented not misleading. All such adjustments are of a normal recurring nature. Certain note information has been omitted because it has not changed significantly from that reflected in Notes 1 through 18 of the Notes to Consolidated Financial Statements filed as part of Item 8 of the Registrant’s annual report on Form 10-K for the fiscal year ended March 31, 2018 (“2018 Annual Report”), as filed with the SEC on May 25, 2018. This quarterly report and the accompanying condensed consolidated financial statements should be read in connection with the 2018 Annual Report. The financial information contained in this quarterly report is not necessarily indicative of the results to be expected for any other period or for the full fiscal year ending March 31, 2019.

Management of the Company has made a number of estimates and assumptions relating to the reporting of assets and liabilities and the disclosure of contingent assets and liabilities to prepare these condensed consolidated financial statements in conformity with accounting principles generally accepted in the United States (“U.S. GAAP”). Actual results could differ from those estimates. Certain of the accounting policies used in the preparation of these condensed consolidated financial statements are complex and require management to make judgments and/or significant estimates regarding amounts reported or disclosed in these financial statements. Additionally, the application of certain of these accounting policies is governed by complex accounting principles and their interpretation. A discussion of the Company’s significant accounting principles and their application is included in Note 1 of the Notes to Consolidated Financial Statements and in Item 7, Management’s Discussion and Analysis of Financial Condition and Results of Operations, of the Company’s 2018 Annual Report.

Accounting Pronouncements Adopted During the Current Year

In May 2014, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") No. 2014-09, Revenue from Contracts with Customers (Topic 606) and issued subsequent amendments to the initial guidance in August 2015, March 2016, April 2016, May 2016 and December 2016 within ASU 2015-14, ASU 2016-08, ASU 2016-10, ASU 2016-12 and ASU 2016-20, respectively. Topic 606 supersedes nearly all existing revenue recognition guidance under U.S. GAAP. The core principle of the new guidance is to recognize revenues when promised goods or services are transferred to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. We adopted Topic 606 as of April 1, 2018 using the modified retrospective method. See Note 2 for further details.

In May 2017, the FASB issued ASU 2017-09, "Compensation-Stock Compensation (Topic 719): Scope of Modification Accounting" ("ASU 2017-09"). ASU 2017-09 clarifies when changes to the terms or conditions of a stock-based payment award must be accounted for as modifications. ASU 2017-09 will reduce diversity in practice and result in fewer changes to the terms of an award being accounted for as modifications. Under ASU 2017-09, an entity will not apply modification accounting to a stock-based payment award if the award's fair value, vesting conditions and classification as an equity or liability instrument are the same immediately before and after the change. ASU 2017-09 will be applied prospectively to awards modified on or after the adoption date. The guidance is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2017. ASU 2017-09 is effective for the Company beginning in fiscal 2019. We adopted the standard in the current fiscal quarter, and adoption of this guidance did not have a material impact on our condensed financial statements and related disclosures.

Recent Accounting Pronouncements Not Yet Adopted

In January 2017, the FASB issued ASU 2017-04, "Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment" ("ASU 2017-04"), which eliminates step two from the goodwill impairment test. Under ASU 2017-04, an entity should recognize an impairment charge for the amount by which the carrying amount of a reporting unit exceeds its fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. ASU 2017-04 is effective for annual periods beginning after December 15, 2019 (fiscal 2021 for the Company), including interim periods within those fiscal years; earlier adoption is permitted for goodwill impairment tests performed on testing dates after January 1, 2017. The Company does not expect the adoption of this guidance to have a material impact on its condensed financial statements and related disclosures.

In February 2016, the FASB issued ASU No. 2016-02, "Leases (Topic 842)" ("ASU 2016-02"), as a comprehensive new standard that amends various aspects of existing guidance for leases and requires additional disclosures about leasing arrangements. The new standard will require lessees to recognize a right-of-use asset and a lease liability on the balance sheet for all leases except short-term leases. For lessees, leases will continue to be classified as either operating or financing in the income statement. Lessor accounting is similar to the current model but updated to align with certain changes to the lessee model. Lessors will continue to classify leases as operating, direct financing or sales-type leases. Subsequently, the FASB has issued various ASU's to provide further clarification around aspects of Topic 842. ASU 2016-02 is effective for annual periods beginning after December 15, 2018 (fiscal 2020 for the Company), including interim periods within those fiscal years, with early adoption permitted. We will adopt the new standard on April 1, 2019 using the modified retrospective approach. The Company is continuing to evaluate the impact of the adoption of this guidance on its condensed consolidated financial statements and related disclosures.

The Company does not anticipate that the adoption of any other recent accounting pronouncements will have a material impact on the Company's consolidated financial position, results of operations or cash flows.