XML 77 R43.htm IDEA: XBRL DOCUMENT
v3.20.1

PROPERTY AND EQUIPMENT - Textuals (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jan. 31, 2020 | Apr. 30, 2019 | Jan. 31, 2020 | Jan. 31, 2019 | Jan. 31, 2018
Property Plant And Equipment [Line Items] |  |  |  |  |
Fixed asset write offs |  |  | $ 5.4 | $ 2.0 |
Depreciation expense |  |  | 33.8 | 33.9 | $ 32.8
Impairment charge on leasehold improvements |  | $ 9.6 |  |  |
Wilsons, G.H. Bass and DKNY Stores [Member] |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |
Impairment charge on leasehold improvements | $ 21.8 |  |  |  |
Furniture and fixtures | Wilsons, G.H. Bass and DKNY Stores [Member] |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |
Impairment charge on leasehold improvements |  |  | 21.8 | 2.8 |
Furniture and fixtures | Wilsons, G H Bass And Vilebrequin Stores |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |
Impairment charge on leasehold improvements |  |  |  | $ 2.8 | 6.5
Furniture and fixtures | Certain Customers' Stores [Member] |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |
Impairment charge on leasehold improvements |  |  |  |  | 0.7
Furniture and fixtures | Wilsons and G.H. Bass Stores [Member] |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |
Impairment charge on leasehold improvements |  |  |  |  | $ 10.5
Leasehold improvements and furniture and fixtures [Member] | Wilsons, G.H. Bass and DKNY Stores [Member] |  |  |  |  |
Property Plant And Equipment [Line Items] |  |  |  |  |
Impairment charge on leasehold improvements |  |  | $ 11.5 |  |

X
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_Depreciation
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The adjustment to reduce the value of existing agreements that specify the lessee's rights to use the leased property. This expense is charged when the estimates of future profits generated by the leased property are reduced. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109226348&loc=d3e2420-110228 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3602-108585 + Details
Name: | us-gaap_ImpairmentOfLeasehold
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of divestiture of long-lived, physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentDisposals
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_PropertyPlantAndEquipmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis=giii_WilsonsG.h.BassAndDknyStoresMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=us-gaap_FurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis=giii_WilsonsGHBassAndVilebrequinStoresMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis=giii_CertainCustomersStoresMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_ImpairedLongLivedAssetsHeldAndUsedByTypeAxis=giii_WilsonsAndG.h.BassStoresMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_PropertyPlantAndEquipmentByTypeAxis=giii_LeaseholdImprovementsAndFurnitureAndFixturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |