Recent Accounting Pronouncements (Policies)	3 Months Ended
Recent Accounting Pronouncements (Policies)	Mar. 31, 2017
Accounting Policies [Abstract]
Basis of Presentation	Unless otherwise noted in this report, any description of "we," "us" or "our" includes Crocs, Inc. ("Crocs" or the "Company,") and its wholly-owned subsidiaries within our reportable operating segments and corporate operations. The Company is engaged in the design, development, manufacturing, worldwide marketing and distribution of casual lifestyle footwear and accessories for men, women, and children. We strive to be the global leader in the sale of molded footwear featuring fun, comfort, color, and functionality. Our reportable operating segments include: the Americas, operating in North and South America; Asia Pacific, operating throughout Asia, Australia, New Zealand, Africa and the Middle East; and Europe, operating throughout Europe and Russia.
Principles of Consolidation	The accompanying unaudited condensed consolidated interim financial statements include the Company’s accounts and those of its wholly-owned subsidiaries, and reflect all adjustments which are necessary for a fair statement of the financial position, results of operations and cash flows for the periods presented in accordance with accounting principles generally accepted in the U.S. ("U.S. GAAP"). Such unaudited interim condensed consolidated financial statements have been prepared in accordance with the instructions to Form 10-Q pursuant to the rules and regulations of the U.S. Securities and Exchange Commission. Certain information and footnote disclosures normally included in financial statements prepared in accordance with U.S. GAAP have been condensed or omitted pursuant to such rules and regulations. The year-end condensed balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America. These unaudited condensed consolidated interim financial statements should be read in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2016 ("Annual Report"), and have been prepared on a consistent basis with the accounting policies described in Note 1 of the Notes to the Audited Consolidated Financial Statements ("Notes") included in our Annual Report. Our accounting policies did not change in the first quarter of 2017
Seasonality of Business	Seasonality of Business Due to the seasonal nature of our footwear, which is more heavily focused on styles suitable for warmer weather, the Company's business is typically affected by seasonal trends, with higher levels of wholesale sales in its first and second quarters and higher retail sales in its second and third quarters. In addition, our quarterly results of operations may fluctuate significantly as a result of other factors, including general economic conditions or consumer confidence. Accordingly, the Company's operating results and cash flows for the three-months ended March 31, 2017 are not necessarily indicative of the operating results and cash flows for any other quarter or for the full year.
Transactions with Affiliates	Transactions with Affiliates The Company receives services from three subsidiaries of Blackstone Capital Partners VI L.P. (“Blackstone”). Blackstone and certain of its permitted transferees currently beneficially own all the outstanding shares of the Company’s Series A Convertible Preferred Stock, which is convertible into approximately 15.7% of the Company’s common stock as of March 31, 2017. Two Blackstone representatives also serve on the Company’s board of directors (the “Board”). Certain Blackstone subsidiaries provide various services, including inventory count, cybersecurity and consulting, and workforce management services. The Company paid $0.1 million and $0.2 million for the three months ended March 31, 2017 and 2016, respectively for these services. Expenses related to these services are reported in ‘Selling, general and administrative expenses’ in the condensed consolidated statement of operations.
Research, Design and Development Expenses	Research, Design and Development Expenses Research, design and development expenses were $2.9 million and $2.7 million for the three months ended March 31, 2017 and 2016, respectively, and are reported in 'Selling, general and administrative expenses' in the condensed consolidated statements of operations.
Advertising and Promotional Expenses	Advertising and Promotional Expenses Production costs of advertising and promotion costs are expensed when the advertising is first run. Advertising communication costs are expensed in the periods that the communications occur. Certain of the Company’s promotional expenses result from payments under endorsement contracts. Payments under endorsement contracts are expensed on a straight-line basis over the related annual contract terms.
Recently Accounting Pronouncements	New Accounting Pronouncement Adopted Inventory Measurement In July 2015, the Financial Accounting Standards Board ("FASB") issued authoritative guidance to measure in-scope inventory at the lower of cost or net realizable value. The Company adopted this guidance on January 1, 2017 on a prospective basis. The adoption did not have a significant effect on our consolidated financial position or results of operations. New Accounting Pronouncements Not Yet Adopted Clarifying the Definition of a Business In January 2017, the FASB issued authoritative guidance intended to clarify the definition of a business, for purposes of determining whether a business has been acquired or sold, and consequently whether transactions should be accounted for as acquisitions or disposals of a business, or as acquisitions or disposals of assets. This guidance is to be applied prospectively and becomes effective for annual reporting periods beginning after December 15, 2017, including interim periods within those periods. The Company is currently assessing the impact that adopting this new accounting standard will have on its consolidated financial statements. Statement of Cash Flows - Classification and Change in Cash In August 2016, the FASB issued authoritative guidance intended to clarify how entities should classify certain cash receipts and cash payments on the statement of cash flows. Further, in November 2016, the FASB issued guidance requiring that restricted cash be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. These updates are effective for annual reporting periods beginning after December 15, 2017, and interim periods within those annual periods, with early adoption permitted. The guidance should be applied retrospectively unless it is impractical to do so; in which case, the guidance should be applied prospectively as of the earliest date practicable. The Company is currently assessing the impact that adopting this new accounting standard will have on its consolidated financial statements. Prepaid Stored-Value Products In March 2016, the FASB issued guidance related to the recognition of breakage for certain prepaid stored-value products. This update aligns recognition of the financial liabilities related to prepaid stored-value products (for example, prepaid gift cards), with Topic 606, Revenue from Contracts with Customers, for non-financial liabilities. In general, certain of these liabilities may be extinguished proportionally in earnings as redemptions occur, or when redemption is remote if issuers are not entitled to the unredeemed stored value. This standard is effective for annual periods (including interim periods) beginning after December 15, 2017, with early adoption permitted. At adoption, this update will be applied either using a modified retrospective transition method by means of a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year in which the guidance is effective or retrospectively to each period presented. The Company is currently assessing the adoption method and the impact that adopting this new accounting standard will have on its consolidated financial statements. Leases In February 2016, the FASB issued authoritative guidance intended to increase transparency and comparability among organizations by recognizing lease assets and liabilities on the balance sheet and disclosing key information about leasing arrangements. Under the new guidance, lessees will be required to recognize a right-of-use asset and a lease liability, measured on a discounted basis, at the commencement date for all leases with terms greater than twelve months. Additionally, this guidance will require disclosures to help investors and other financial statement users to better understand the amount, timing, and uncertainty of cash flows arising from leases, including qualitative and quantitative requirements. The guidance should be applied under a modified retrospective transition approach for leases existing at the beginning of the earliest comparative period presented in the adoption-period financial statements. Any leases that expire before the initial application date will not require any accounting adjustment. This guidance is effective for annual reporting periods beginning after December 15, 2018, including interim periods within those annual periods, with early adoption permitted. The Company will adopt this guidance beginning with the quarterly reporting period ending March 31, 2019. The Company is evaluating the full impact this guidance will have on its consolidated financial statements, and expects that adoption will result in significant increases in lease related assets and liabilities on its consolidated balance sheet. Revenue Recognition In May 2014, the FASB issued authoritative guidance related to new accounting requirements for the recognition of revenue from contracts with customers. 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 an amount that reflects the consideration to which the entity expects to be entitled to in exchange for the goods or services. Subsequent to the release of this guidance, the FASB has issued additional updates intended to provide interpretive clarifications and to reduce the cost and complexity of applying the new revenue recognition standard both at transition and on an ongoing basis. The new standard and related amendments are effective for annual reporting periods beginning after December 15, 2017, and interim periods within those annual periods. Upon adoption of the new standard, the use of either a full retrospective or cumulative effect transition method is permitted. In December 2016, the Company established an implementation team and engaged external advisers to develop a multi-phase plan to assess the Company’s business and contracts, as well as any changes to accounting policies, processes or systems necessary to adopt the requirements of the new standard. The Company has completed an initial review of its revenue contracts and terms and is assessing how adoption of the new standard will affect its consolidated financial statements and disclosures, as well as the adoption method. The Company is continuing its evaluation of the impact of the accounting and disclosure changes, and method of adoption, on its business processes, controls and systems. The Company will provide additional information regarding expected effects on its consolidated financial statements and disclosures, and the transition method in subsequent quarterly reports. Other Pronouncements Other new pronouncements issued but not effective until after March 31, 2017 are not expected to have a material impact on the Company’s consolidated financial statements.
Derivatives Financial Instruments	The Company's derivative instruments are recorded at fair value as a derivative asset or liability in the condensed consolidated balance sheets. The Company reports derivative instruments with the same counterparty on a net basis when a master netting arrangement is in place. Changes in fair value are recognized within 'Foreign currency gain (loss), net' in the condensed consolidated statements of operations. For the cash flow statement, the Company classifies cash flows from derivative instruments at settlement in the same category as the cash flows from the related hedged items within 'Cash used in operating activities'.