Basis of Presentation	3 Months Ended
Apr. 30, 2019
Basis of Presentation [Abstract]
Basis of Presentation	Note 1 – Basis of Presentation As used in these financial statements, the term “Company” or “G-III” refers to G-III Apparel Group, Ltd. and its subsidiaries. The Company designs, sources and markets an extensive range of apparel, including outerwear, dresses, sportswear, swimwear, women’s suits and women’s performance wear, as well as women’s handbags, footwear, small leather goods, cold weather accessories and luggage. The Company also operates retail stores and licenses its proprietary brands under several product categories. The Company consolidates the accounts of its wholly-owned and majority-owned subsidiaries. KL North America B.V. (“KLNA”) and Fabco Holding B.V. (“Fabco”) are Dutch joint venture limited liability companies that are 49% owned by the Company. Karl Lagerfeld Holding B.V. is a Dutch limited liability company that is 19% owned by the Company. These investments are accounted for using the equity method of accounting. All material intercompany balances and transactions have been eliminated. Vilebrequin International SA (“Vilebrequin”), a Swiss corporation that is wholly-owned by the Company, KLH, KLNA and Fabco report results on a calendar year basis rather than on the January 31 fiscal year basis used by the Company. Accordingly, the results of Vilebrequin, KLH, KLNA and Fabco are, and will be, included in the financial statements for the quarter ended or ending closest to the Company’s fiscal quarter. For example, with respect to the Company’s results for the three-month period ended April 30, 2019, the results of Vilebrequin, KLH, KLNA and Fabco are included for the three-month period ended March 31, 2019. The Company’s retail operations segment reports on a 52/53‑week fiscal year. The Company’s three month periods ended April 30, 2019 and 2018 were each 13‑week fiscal quarters for the retail operations segment. For fiscal 2020 and 2019, the three month period for the retail operations segment ended on May 4, 2019 and May 5, 2018, respectively. The results for the three months ended April 30, 2019 are not necessarily indicative of the results expected for the entire fiscal year, given the seasonal nature of the Company’s business. The accompanying financial statements included herein are unaudited. All adjustments (consisting of only normal recurring adjustments) necessary for a fair presentation of the financial position, results of operations and cash flows for the interim period presented have been reflected. The accompanying financial statements should be read in conjunction with the financial statements and notes included in the Company’s Annual Report on Form 10‑K for the fiscal year ended January 31, 2019 filed with the Securities and Exchange Commission (the “SEC”). Assets and liabilities of the Company’s foreign operations, where the functional currency is not the U.S. Dollar (reporting currency), are translated from foreign currency into U.S. dollars at period-end rates, while income and expenses are translated at the weighted-average exchange rates for the period. The related translation adjustments are reflected as a foreign currency translation adjustment in accumulated other comprehensive loss within stockholders’ equity.

Note 1 – Basis of Presentation

As used in these financial statements, the term “Company” or “G-III” refers to G-III Apparel Group, Ltd. and its subsidiaries. The Company designs, sources and markets an extensive range of apparel, including outerwear, dresses, sportswear, swimwear, women’s suits and women’s performance wear, as well as women’s handbags, footwear, small leather goods, cold weather accessories and luggage. The Company also operates retail stores and licenses its proprietary brands under several product categories.

The Company consolidates the accounts of its wholly-owned and majority-owned subsidiaries. KL North America B.V. (“KLNA”) and Fabco Holding B.V. (“Fabco”) are Dutch joint venture limited liability companies that are 49% owned by the Company. Karl Lagerfeld Holding B.V. is a Dutch limited liability company that is 19% owned by the Company. These investments are accounted for using the equity method of accounting. All material intercompany balances and transactions have been eliminated.

Vilebrequin International SA (“Vilebrequin”), a Swiss corporation that is wholly-owned by the Company, KLH, KLNA and Fabco report results on a calendar year basis rather than on the January 31 fiscal year basis used by the Company. Accordingly, the results of Vilebrequin, KLH, KLNA and Fabco are, and will be, included in the financial statements for the quarter ended or ending closest to the Company’s fiscal quarter. For example, with respect to the Company’s results for the three-month period ended April 30, 2019, the results of Vilebrequin, KLH, KLNA and Fabco are included for the three-month period ended March 31, 2019. The Company’s retail operations segment reports on a 52/53‑week fiscal year. The Company’s three month periods ended April 30, 2019 and 2018 were each 13‑week fiscal quarters for the retail operations segment. For fiscal 2020 and 2019, the three month period for the retail operations segment ended on May 4, 2019 and May 5, 2018, respectively.

The results for the three months ended April 30, 2019 are not necessarily indicative of the results expected for the entire fiscal year, given the seasonal nature of the Company’s business. The accompanying financial statements included herein are unaudited. All adjustments (consisting of only normal recurring adjustments) necessary for a fair presentation of the financial position, results of operations and cash flows for the interim period presented have been reflected.

The accompanying financial statements should be read in conjunction with the financial statements and notes included in the Company’s Annual Report on Form 10‑K for the fiscal year ended January 31, 2019 filed with the Securities and Exchange Commission (the “SEC”).

Assets and liabilities of the Company’s foreign operations, where the functional currency is not the U.S. Dollar (reporting currency), are translated from foreign currency into U.S. dollars at period-end rates, while income and expenses are translated at the weighted-average exchange rates for the period. The related translation adjustments are reflected as a foreign currency translation adjustment in accumulated other comprehensive loss within stockholders’ equity.