General (Policies)	9 Months Ended
General (Policies)	Dec. 31, 2016
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation Deckers Outdoor Corporation (the Company) is a global leader in designing, marketing and distributing innovative footwear, apparel, and accessories developed for both everyday casual lifestyle use and high performance activities. The Company’s business is seasonal, with the highest percentage of UGG® (UGG) brand net sales occurring in the quarters ending September 30 and December 31 and the highest percentage of Teva® (Teva) and Sanuk® (Sanuk) brands net sales occurring in the quarters ending March 31 and June 30 of each year. Net sales of the other brands do not have a significant seasonal impact on the Company. The Company sells its products through domestic retailers and international distributors and retailers, as well as directly to end-user consumers through the Direct-to-Consumer (DTC) reporting segment. Independent third parties manufacture all of the Company's products. The accompanying unaudited condensed consolidated financial statements (referred to herein as condensed consolidated financial statements) as of December 31, 2016 and for the three and nine months ended December 31, 2016 and December 31, 2015, and the accompanying notes thereto, have been prepared in accordance with accounting principles generally accepted in the United States (US GAAP) for interim financial information and pursuant to Rule 10-01 of Regulation S-X issued by the Securities and Exchange Commission (SEC). Accordingly, they do not include all the information and disclosures required by US GAAP for annual financial statements and the accompanying notes thereto. In the opinion of management, the condensed consolidated financial statements include all adjustments consisting of all normal and recurring entries considered necessary for a fair presentation of the results of interim periods presented. The results of operations for interim periods are not necessarily indicative of results to be achieved for full fiscal years or other interim periods. The accompanying unaudited condensed consolidated financial statements and the accompanying notes thereto should be read in conjunction with the notes to the consolidated financial statements in the Company’s Annual Report on Form 10-K, for the fiscal year ended March 31, 2016, filed with the SEC on May 31, 2016.
Use of Estimates	Use of Estimates The preparation of the Company’s condensed consolidated financial statements and the accompanying notes thereto in accordance with US GAAP requires management to make estimates and assumptions that affect the amounts reported in these condensed consolidated financial statements and the accompanying notes thereto. Management bases these estimates and assumptions upon historical experience, existing and known circumstances, authoritative accounting pronouncements and other factors that management believes to be reasonable. Significant areas requiring the use of management's estimates relate to inventory write-downs, accounts receivable allowances, returns liabilities, stock-based compensation, impairment assessments, depreciation and amortization, income tax liabilities, uncertain tax positions and income taxes receivable, the fair value of financial instruments, and the fair values of assets and liabilities, including goodwill and other intangible assets. These estimates are based on information available as of the date of the condensed consolidated financial statements and the accompanying notes thereto. For the reasons stated above, actual results could differ materially from these estimates.
Recent Accounting Pronouncements	Recent Accounting Pronouncements In May 2014, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) No. 2014-09, Revenue from Contracts with Customers, which requires an entity to recognize the amount of revenue to which it expects to be entitled for the transfer of promised goods or services to customers. The ASU will replace most existing revenue recognition guidance in US GAAP when it becomes effective. The standard permits the use of either the retrospective or cumulative effect transition method. On August 12, 2015, the FASB issued ASU No. 2015-14, Revenue from Contracts with Customers, which provides for a one-year deferral of the effective date of ASU No. 2014-09, as well as early application, which will be effective for the Company as of April 1, 2018. In March 2016, the FASB issued ASU No. 2016-08, Principal versus Agent Considerations (Reporting Revenue Gross versus Net), which clarifies how to apply the implementation guidance related to principal versus agent considerations within ASU No. 2014-09. The Company is evaluating the effect that the adoption of these ASUs will have on its condensed consolidated financial statements and related disclosures. The Company has not yet selected a transition method, nor has it determined the effect of the standard on its ongoing financial reporting. However, the adoption of the new revenue standard is not expected to have a material impact on the condensed consolidated financial statements and related disclosures. In July 2015, the FASB issued ASU No. 2015-11, Simplifying the Measurement of Inventory, which changed the measurement principle for inventory from the lower of cost or market to the lower of cost and net realizable value. US GAAP currently requires that, at each financial statement date, entities measure inventory at the lower of cost or market, which is typically determined by reference to the current replacement cost. This ASU is effective for the Company as of April 1, 2017, with early adoption permitted. The Company is evaluating the effect that the adoption of this ASU will have on its condensed consolidated financial statements and related disclosures, but it is not expected to have a material impact. In February 2016, the FASB issued ASU No. 2016-02, Leases, to increase transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. The new standard requires the recognition of lease assets and lease liabilities by lessees for those leases classified as operating leases under previous US GAAP. A lessee should recognize in the balance sheet a liability to make lease payments (the lease liability) at fair value and an offsetting right-of-use asset representing its right to use the underlying asset for the lease term. When measuring assets and liabilities arising from a lease, a lessee (and a lessor) should include payments to be made in optional periods only if the lessee is reasonably certain that it will exercise an option to extend the lease or not exercise an option to terminate the lease. Similarly, optional payments to purchase the underlying asset should be included in the measurement of lease assets and lease liabilities only if the lessee is reasonably certain that it will exercise that purchase option. This ASU is effective for the Company as of April 1, 2019. The Company is evaluating the effect that the adoption of this ASU will have on its condensed consolidated financial statements and related disclosures. Since the Company utilizes operating leases for most of its facilities and retail stores, it is anticipated that adoption of this ASU will have a material impact on its balance sheet presentation. In March 2016, the FASB issued ASU No. 2016-09, Improvements to Employee Share-Based Payment Accounting, which requires an entity to recognize excess tax benefits and certain tax deficiencies associated with employee share-based payment awards in the income statement instead of in additional paid-in-capital when the awards vest or are settled, and present excess tax benefits as an operating activity on the statement of cash flows instead of as a financing activity. This ASU also allows entities to repurchase more of an employee’s shares for tax withholding purposes without triggering liability accounting, and to make a policy election to either estimate the number of awards that are expected to vest or to account for forfeitures as they occur. In addition, the cash paid by an entity to a tax authority when shares are withheld to satisfy its statutory income tax withholding obligation is required to be classified as a financing activity on its statement of cash flows. This ASU is effective for the Company as of April 1, 2017, with early adoption permitted. The Company is evaluating the effect that the adoption of this ASU will have on its condensed consolidated financial statements and related disclosures, but it is not expected to have a material impact. In August 2016, the FASB issued ASU No. 2016-15, Statement of Cash Flows, Classification of Certain Cash Receipts and Cash Payments. The ASU addressed specific cash flow issues with the objective of reducing the diversity in practice prior to issuance of the update. This ASU is effective for the Company as of April 1, 2018, with early adoption permitted. The Company is evaluating the effect that the adoption of this ASU will have on its statement of cash flows and related disclosures, but it is not expected to have a material impact. In January 2017, the FASB issued ASU No. 2017-04, Simplifying the Test for Goodwill Impairment, which eliminates step two from the goodwill impairment test. In computing the implied fair value of goodwill under current step two, an entity previously had to perform procedures to determine the fair value of its assets and liabilities at the impairment testing date following the procedure required to determine the fair value of assets acquired and liabilities assumed in a business combination. Under this ASU, an entity is required to perform its annual or interim goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount. An entity should recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit’s fair value. This ASU is effective for the Company as of April 1, 2020, with early adoption permitted. The Company is evaluating the effect that the adoptions of this ASU will have on its condensed consolidated financial statements and related disclosures. The maximum exposure related to the adoption of this ASU would be to write off the remaining goodwill of $13,990, should the change in the annual or interim impairment tests result in goodwill impairment.