Basis of Presentation and Summary of Significant Accounting Policies	9 Months Ended
Sep. 30, 2018
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation and Summary of Significant Accounting Policies	BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Unless otherwise noted in this report, any description of the “Company,” “Crocs,” “we,” “us,” or “our” includes Crocs, Inc. and its consolidated subsidiaries within our reportable operating segments and corporate operations. The Company is engaged in the design, development, worldwide marketing, distribution, and sale of casual lifestyle footwear and accessories for men, women, and children. We strive to be the global leader in the sale of molded footwear characterized by functionality, comfort, color, and lightweight design. Our reportable operating segments include: the Americas, operating in North and South America; Asia Pacific, operating throughout Asia, Australia, and New Zealand; and Europe, operating throughout Western Europe, Eastern Europe, Russia, Africa, and the Middle East. In the third quarter of 2018, certain revenues and expenses previously reported within the ‘Asia Pacific’ segment were shifted to the ‘Europe’ segment. See Note 13 — Operating Segments and Geographic Information for additional information. The previously reported amounts for revenues and income from operations for the three and nine months ended September 30, 2017 have been revised to conform to the current year presentation. 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 United States of America (“U.S. GAAP”). Such unaudited condensed consolidated interim 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 (“SEC”). 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 U.S. GAAP. 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, 2017 (“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 included in our Annual Report. Our accounting policies did not change during the three and nine months ended September 30, 2018, other than for the change in accounting principle described in “Inventories” below and the new accounting pronouncements adopted as described in Note 2 — Recent Accounting Pronouncements. Seasonality of Business Due to the seasonal nature of our footwear, which is more heavily focused on styles suitable for warm weather, revenues generated during our fourth quarter are typically less than revenues generated during our first three quarters, when the northern hemisphere is experiencing warmer weather. Our quarterly results of operations may also fluctuate significantly as a result of a variety of other factors, including the timing of new model introductions, general economic conditions, and consumer confidence. Accordingly, results of operations and cash flows for any one quarter are not necessarily indicative of expected results for any other quarter or for any other year. 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 (“Series A Preferred Stock”), which is convertible into approximately 13.8 million shares, or 17.0%, of the Company’s common stock as of September 30, 2018. Blackstone also has the right to nominate two representatives to serve on the Company’s Board of Directors. Certain Blackstone subsidiaries provide various services to the Company, including inventory count services, cybersecurity and consulting, and workforce management services. The Company paid $0.1 million for each of the three month periods ended September 30, 2018 and 2017, respectively, and $0.5 million and $0.6 million for the nine months ended September 30, 2018 and 2017, respectively, for these services. Expenses related to these services are reported in ‘Selling, general and administrative expenses’ in the condensed consolidated statements of operations. Restricted Cash Restricted cash primarily consists of funds to secure certain retail store leases, certain customs requirements, and other contractual arrangements. Inventories Inventories are stated at the lower of cost or net realizable value. Effective January 1, 2018, the Company completed implementation of a new inventory costing system for approximately 95% of its inventories. In connection with the implementation, the Company changed its method of inventory costing from a moving average cost method to a first-in-first-out method. The Company believes this change in accounting principle is preferable because it results in more precision and consistency in global and regional inventory costs, more efficient analysis and better matching of inventory costs with revenues, better matches the physical flow of inventories, and improves comparability with industry peers. The change from the Company’s former inventory cost method did not have a material effect on inventory or cost of sales, and, as a result, prior comparative financial statements have not been restated. As of September 30, 2018 and December 31, 2017, our finished goods inventories accounted for 99.3% and 97.5%, respectively, of our consolidated inventories, and the remaining balance consisted of raw materials and work-in-process. Marketing Expenses Total marketing expenses inclusive of advertising, production, promotion, and agency expenses were $14.5 million and $9.9 million for the three months ended September 30, 2018 and 2017, respectively, and $55.4 million and $49.6 million for the nine months ended September 30, 2018 and 2017, respectively. Marketing expenses are reported in ‘Selling, general and administrative expenses’ in the condensed consolidated statements of operations. Prepaid advertising and promotional endorsement expenses of $9.3 million and $7.0 million are included in ‘Prepaid expenses and other assets’ in the condensed consolidated balance sheets at September 30, 2018 and December 31, 2017, respectively.

BASIS OF PRESENTATION AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Unless otherwise noted in this report, any description of the “Company,” “Crocs,” “we,” “us,” or “our” includes Crocs, Inc. and its consolidated subsidiaries within our reportable operating segments and corporate operations. The Company is engaged in the design, development, worldwide marketing, distribution, and sale of casual lifestyle footwear and accessories for men, women, and children. We strive to be the global leader in the sale of molded footwear characterized by functionality, comfort, color, and lightweight design.

Our reportable operating segments include: the Americas, operating in North and South America; Asia Pacific, operating throughout Asia, Australia, and New Zealand; and Europe, operating throughout Western Europe, Eastern Europe, Russia, Africa, and the Middle East. In the third quarter of 2018, certain revenues and expenses previously reported within the ‘Asia Pacific’ segment were shifted to the ‘Europe’ segment. See Note 13 — Operating Segments and Geographic Information for additional information. The previously reported amounts for revenues and income from operations for the three and nine months ended September 30, 2017 have been revised to conform to the current year presentation.

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 United States of America (“U.S. GAAP”). Such unaudited condensed consolidated interim 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 (“SEC”). 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 U.S. GAAP.

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, 2017 (“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 included in our Annual Report. Our accounting policies did not change during the three and nine months ended September 30, 2018, other than for the change in accounting principle described in “Inventories” below and the new accounting pronouncements adopted as described in Note 2 — Recent Accounting Pronouncements.

Seasonality of Business

Due to the seasonal nature of our footwear, which is more heavily focused on styles suitable for warm weather, revenues generated during our fourth quarter are typically less than revenues generated during our first three quarters, when the northern hemisphere is experiencing warmer weather. Our quarterly results of operations may also fluctuate significantly as a result of a variety of other factors, including the timing of new model introductions, general economic conditions, and consumer confidence. Accordingly, results of operations and cash flows for any one quarter are not necessarily indicative of expected results for any other quarter or for any other year.

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 (“Series A Preferred Stock”), which is convertible into approximately 13.8 million shares, or 17.0%, of the Company’s common stock as of September 30, 2018. Blackstone also has the right to nominate two representatives to serve on the Company’s Board of Directors.

Certain Blackstone subsidiaries provide various services to the Company, including inventory count services, cybersecurity and consulting, and workforce management services. The Company paid $0.1 million for each of the three month periods ended September 30, 2018 and 2017, respectively, and $0.5 million and $0.6 million for the nine months ended September 30, 2018 and 2017, respectively, for these services. Expenses related to these services are reported in ‘Selling, general and administrative expenses’ in the condensed consolidated statements of operations.

Restricted Cash

Restricted cash primarily consists of funds to secure certain retail store leases, certain customs requirements, and other contractual arrangements.

Inventories

Inventories are stated at the lower of cost or net realizable value. Effective January 1, 2018, the Company completed implementation of a new inventory costing system for approximately 95% of its inventories. In connection with the implementation, the Company changed its method of inventory costing from a moving average cost method to a first-in-first-out method. The Company believes this change in accounting principle is preferable because it results in more precision and consistency in global and regional inventory costs, more efficient analysis and better matching of inventory costs with revenues, better matches the physical flow of inventories, and improves comparability with industry peers. The change from the Company’s former inventory cost method did not have a material effect on inventory or cost of sales, and, as a result, prior comparative financial statements have not been restated.

As of September 30, 2018 and December 31, 2017, our finished goods inventories accounted for 99.3% and 97.5%, respectively, of our consolidated inventories, and the remaining balance consisted of raw materials and work-in-process.

Marketing Expenses

Total marketing expenses inclusive of advertising, production, promotion, and agency expenses were $14.5 million and $9.9 million for the three months ended September 30, 2018 and 2017, respectively, and $55.4 million and $49.6 million for the nine months ended September 30, 2018 and 2017, respectively. Marketing expenses are reported in ‘Selling, general and administrative expenses’ in the condensed consolidated statements of operations.

Prepaid advertising and promotional endorsement expenses of $9.3 million and $7.0 million are included in ‘Prepaid expenses and other assets’ in the condensed consolidated balance sheets at September 30, 2018 and December 31, 2017, respectively.