Basis of Presentation	3 Months Ended
Apr. 30, 2018
Accounting Policies [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, manufactures 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 all its wholly-owned and majority-owned subsidiaries. KL North America BV (“KLNA”) and Fabco Holding B.V. (“Fabco”) are Dutch limited liability companies that are joint ventures that are 49% owned by the Company. Karl Lagerfeld Holding B.V. (“KLH”) 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 and KLNA report results on a calendar year basis rather than on the January 31 fiscal year basis used by the Company. The Company’s retail stores use a 52/53-week fiscal year. The Company’s three months ended April 30, 2017 and 2018 were both a 13-week fiscal quarter for the retail operations segment. For fiscal 2018 and 2019, the retail operations segment three month periods ended on April 29, 2017 and May 5, 2018, respectively. The results for the three-month period ended April 30, 2018 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, 2018 filed with the Securities and Exchange Commission (the “SEC”). Each of the Company’s international subsidiaries uses its local currency as its functional currency. In accordance with the authoritative guidance, assets and liabilities of the Company’s foreign operations 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 income (loss) within stockholders’ equity. Certain reclassifications have been made to the Condensed Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) as a result of the Company’s reclassifying the impact of certain components of foreign currency gain (loss) from cost of goods sold and interest expense to other income. This change resulted in an increase in cost of goods sold, a decrease in interest and financing charges, net and a decrease in other loss for the three months ended April 30, 2017, compared to the amounts previously reported.

Basis of Presentation

3 Months Ended

Apr. 30, 2018

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, manufactures 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 all its wholly-owned and majority-owned subsidiaries. KL North America BV (“KLNA”) and Fabco Holding B.V. (“Fabco”) are Dutch limited liability companies that are joint ventures that are 49% owned by the Company. Karl Lagerfeld Holding B.V. (“KLH”) 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 and KLNA report results on a calendar year basis rather than on the January 31 fiscal year basis used by the Company. The Company’s retail stores use a 52/53-week fiscal year. The Company’s three months ended April 30, 2017 and 2018 were both a 13-week fiscal quarter for the retail operations segment. For fiscal 2018 and 2019, the retail operations segment three month periods ended on April 29, 2017 and May 5, 2018, respectively.

The results for the three-month period ended April 30, 2018 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, 2018 filed with the Securities and Exchange Commission (the “SEC”).

Each of the Company’s international subsidiaries uses its local currency as its functional currency. In accordance with the authoritative guidance, assets and liabilities of the Company’s foreign operations 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 income (loss) within stockholders’ equity.

Certain reclassifications have been made to the Condensed Consolidated Statements of Income (Loss) and Comprehensive Income (Loss) as a result of the Company’s reclassifying the impact of certain components of foreign currency gain (loss) from cost of goods sold and interest expense to other income. This change resulted in an increase in cost of goods sold, a decrease in interest and financing charges, net and a decrease in other loss for the three months ended April 30, 2017, compared to the amounts previously reported.