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Basis of Presentation - Textuals (Details) $ in Thousands |  | 6 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 01, 2020 | Jul. 31, 2021 USD ($) entity | Apr. 30, 2021 USD ($) | Jan. 31, 2021 USD ($) | Nov. 30, 2020 | Jul. 31, 2020 USD ($) | Apr. 30, 2020 USD ($) | Jan. 31, 2020 USD ($)
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Number of investments using equity method accounting | entity |  | 2 |  |  |  |  |  |
Cumulative effect of adoption of ASC |  | $ 1,380,612 | $ 1,357,876 | $ 1,336,241 |  | $ 1,237,749 | $ 1,246,234 | $ 1,290,672
Retained Earnings |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Cumulative effect of adoption of ASC |  | $ 961,901 | $ 942,733 | 916,683 |  | $ 838,867 | $ 853,843 | $ 893,138
Fabco Holding B.V. [Member] |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Ownership percent |  |  |  |  | 49.00% |  |  |
Subsidiary ownership percentage | 75.00% |  |  |  |  |  |  |
KL North America B.V. [Member] |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Ownership percent |  | 49.00% |  |  |  |  |  |
Karl Lagerfeld Holding B.V. ("KLH") |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Ownership percent |  | 19.00% |  |  |  |  |  |
Cumulative Effect, Period of Adoption, Adjustment |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Cumulative effect of adoption of ASC |  |  |  | (271) |  |  |  |
Cumulative Effect, Period of Adoption, Adjustment | Retained Earnings |  |  |  |  |  |  |  |
Schedule of Equity Method Investments [Line Items] |  |  |  |  |  |  |  |
Cumulative effect of adoption of ASC |  |  |  | $ (271) |  |  |  |

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