Basis of Presentation	9 Months Ended
Sep. 30, 2019
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Basis of Presentation	1. Basis of Presentation The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management of Iconix Brand Group, Inc. (the “Company,” “we,” “us,” or “our”), all adjustments (consisting primarily of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended September 30, 2019 (“Current Quarter”) and the nine months ended September 30, 2019 (“Current Nine Months”) are not necessarily indicative of the results that may be expected for a full fiscal year. The interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. During the Current Nine Months, the Company adopted one new accounting pronouncement. Refer to Note 20 for further details. Certain reclassifications, which were immaterial, have been made to conform prior year data to the current presentation. During the Current Nine Months, the Company also made a reclassification between redeemable noncontrolling interest and noncontrolling interest. Liquidity These consolidated financial statements are prepared on a going concern basis that contemplates the realization of cash flows from assets and discharge of liabilities, in each case, in the ordinary course of business consistent with the Company’s prior periods. Based on the Company’s financial plans and projections for 2019 and 2020, which assumes the realization of significant cost savings, among other things, from the successful implementation of the Company’s current strategic initiatives, the Company does not expect the occurrence of any payment defaults on its outstanding debt facilities in the next twelve months, and otherwise expects to generate sufficient cash to meet its operating cash flow needs and maintain compliance with the financial covenants set forth in its various debt facilities during such period. For additional information, please refer to Note 1 of Notes to Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018. Reverse Stock Split On March 14, 2019, the Company effected a 1-for-10 reverse stock split (the “Reverse Stock Split”) of its common stock. Unless the context otherwise requires, all share and per share amounts in this quarterly report on Form 10-Q have been adjusted to reflect the Reverse Stock Split. Refer to Note 9 for further details.

Basis of Presentation

9 Months Ended

Sep. 30, 2019

Organization Consolidation And Presentation Of Financial Statements [Abstract]

1. Basis of Presentation

The accompanying unaudited condensed consolidated financial statements have been prepared in accordance with generally accepted accounting principles for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all the information and footnotes required by generally accepted accounting principles for complete financial statements. In the opinion of management of Iconix Brand Group, Inc. (the “Company,” “we,” “us,” or “our”), all adjustments (consisting primarily of normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three months ended September 30, 2019 (“Current Quarter”) and the nine months ended September 30, 2019 (“Current Nine Months”) are not necessarily indicative of the results that may be expected for a full fiscal year. The interim condensed consolidated financial statements should be read in conjunction with the consolidated financial statements and accompanying notes included in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018.

During the Current Nine Months, the Company adopted one new accounting pronouncement. Refer to Note 20 for further details.

Certain reclassifications, which were immaterial, have been made to conform prior year data to the current presentation. During the Current Nine Months, the Company also made a reclassification between redeemable noncontrolling interest and noncontrolling interest.

Liquidity

These consolidated financial statements are prepared on a going concern basis that contemplates the realization of cash flows from assets and discharge of liabilities, in each case, in the ordinary course of business consistent with the Company’s prior periods. Based on the Company’s financial plans and projections for 2019 and 2020, which assumes the realization of significant cost savings, among other things, from the successful implementation of the Company’s current strategic initiatives, the Company does not expect the occurrence of any payment defaults on its outstanding debt facilities in the next twelve months, and otherwise expects to generate sufficient cash to meet its operating cash flow needs and maintain compliance with the financial covenants set forth in its various debt facilities during such period.

For additional information, please refer to Note 1 of Notes to Consolidated Financial Statements in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018.

Reverse Stock Split

On March 14, 2019, the Company effected a 1-for-10 reverse stock split (the “Reverse Stock Split”) of its common stock. Unless the context otherwise requires, all share and per share amounts in this quarterly report on Form 10-Q have been adjusted to reflect the Reverse Stock Split. Refer to Note 9 for further details.