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NOTES PAYABLE AND OTHER LIABILITIES (Detail Textuals) - USD ($) $ in Thousands |  | 12 Months Ended
--- | --- | ---
Dec. 01, 2016 | Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
Debt Instrument [Line Items] |  |  |  |
Debt issuance costs |  | $ 9,500 | $ 11,900 |
Amortization of debt issuance cost |  | 10,890 | $ 5,157 | $ 845
Term loan |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity |  | $ 350,000 |  |
Amortization payments percentage of original aggregate principal amount |  | 0.625% |  |
Loan expenses |  | $ 2,600 |  |
Prepayment of principle amount | $ 50,000 |  |  |
Floor rate |  | 1.00% |  |
Applicable margin |  | 5.25% |  |
Prepayment fee percentage |  | 1.00% |  |
Term loan description |  | The Term Loan is also required to be prepaid in an amount equal to 75% of the “Excess Cash Flow” (as defined in the Term Loan) of the Company with respect to each fiscal year ending on or after January 31, 2018. The percentage of Excess Cash Flow that must be so applied is reduced to 50% if the Company’s senior secured leverage ratio is less than 3.00 to 1.00, to 25% if the Company’s senior secured leverage ratio is less than 2.75 to 1.00 and to 0% if the Company’s senior secured leverage ratio is less than 2.25 to 1.00. |  |
Prepayment percentage of excess cash flow |  | 75.00% |  |
Prepayment percentage of excess cash flow when leverage ratio less than 3.00 to 1.00 |  | 50.00% |  |
Prepayment percentage of excess cash flow when leverage ratio less than 2.75 to 1.00 |  | 25.00% |  |
Prepayment percentage of excess cash flow when leverage ratio less than 2.25 to 1.00 |  | 0.00% |  |
Leverage ratio description for 50% prepayment |  | Less than 3.00 to 1.00 |  |
Leverage ratio description for 25% prepayment |  | Less than 2.75 to 1.00 |  |
Leverage ratio description for 0% prepayment |  | Less than 2.25 to 1.00 |  |
Debt issuance costs |  | $ 18,300 |  |
Weighted average interest rate |  | 6.55% |  |
Debt instrument interest rate |  | 0.25% |  |
Effect of change on interest expenses |  | $ 750,000 |  |
Interest rate terms |  | Interest on the outstanding principal amount of the Term Loan accrues at a rate equal to LIBOR, subject to a 1% floor, plus an applicable margin of 5.25% or an alternate base rate (defined as the greatest of  (i) the “prime rate” as published by the Wall Street Journal from time to time, (ii) the federal funds rate plus 0.5% or (iii) the LIBOR rate for a borrowing with an interest period of one month) plus 4.25%, per annum, payable in cash. |  |
Term loan | LIBOR plus |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread interest rate |  | 4.25% |  |
Term loan | Federal funds rate plus |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread interest rate |  | 0.50% |  |
New revolving credit facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity |  | $ 650,000 |  |
Debt instrument commitment fee percentage |  | 0.25% |  |
Term of credit agreement |  | 5 years |  |
Term loan description |  | The new revolving credit facility contains a number of covenants that, among other things, restrict the Company's ability, subject to specified exceptions, to incur additional debt; incur liens; sell or dispose of assets; merge with other companies; liquidate or dissolve itself; acquire other companies; make loans, advances, or guarantees; and make certain investments. In certain circumstances, the new revolving credit facility also requires G-III to maintain a minimum fixed charge coverage ratio, as defined, that should not exceed 1.00 to 1.00 for each period of twelve consecutive fiscal months of holdings. |  |
Debt issuance costs |  | $ 12,400 |  |
Weighted average interest rate |  | 2.33% |  |
Borrowings outstanding |  | $ 12,000 |  |
New revolving credit facility | Trade letters of credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Borrowings outstanding |  | 3,400 |  |
New revolving credit facility | Standby letters of credit |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Borrowings outstanding |  | $ 3,000 |  |
New revolving credit facility | LIBOR plus | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread interest rate |  | 1.25% |  |
LIBOR rate for borrowing with an interest period of one month |  | 0.25% |  |
New revolving credit facility | LIBOR plus | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread interest rate |  | 1.75% |  |
LIBOR rate for borrowing with an interest period of one month |  | 0.75% |  |
New revolving credit facility | Federal funds rate plus |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread interest rate |  | 0.50% |  |
LVMH Note |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing capacity |  | $ 125,000 |  |
Debt instrument interest rate |  | 2.00% |  |
Debt discount |  | $ 40,000 |  |
LVMH Note | Notes Payable due on June 1, 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Note due and payable |  | 75,000 |  |
LVMH Note | Notes Payable due on December 1, 2023 |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Note due and payable |  | 50,000 |  |
Old Revolving Credit Facility |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Maximum borrowing amount |  | $ 450,000 |  |
Term of credit agreement |  | 5 years |  |
Weighted average interest rate |  | 2.10% |  |
Old Revolving Credit Facility | LIBOR plus | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread interest rate |  | 1.50% |  |
Old Revolving Credit Facility | LIBOR plus | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread interest rate |  | 2.00% |  |
Old Revolving Credit Facility | Prime plus | Minimum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread interest rate |  | 0.50% |  |
Old Revolving Credit Facility | Prime plus | Maximum |  |  |  |
Debt Instrument [Line Items] |  |  |  |
Spread interest rate |  | 1.00% |  |

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