XML 58 R43.htm IDEA: XBRL DOCUMENT
v3.8.0.1

ACQUISITIONS AND INTANGIBLES (Detail 3) - USD ($) $ in Thousands | 12 Months Ended |  |
--- | --- | --- | ---
Jan. 31, 2018 | Jan. 31, 2017 | Jan. 31, 2016
Goodwill And Intangible Assets [Line Items] |  |  |
Subtotal | $ 76,155 | $ 73,498 |
Accumulated amortization | (29,750) | (24,940) |
Total finite-lived intangible assets | 46,405 | 48,558 |
Unamortized intangible assets |  |  |
Goodwill | 262,710 | 269,262 | $ 49,437
Trademarks | 442,265 | 435,414 |
Total indefinite-lived intangible assets | 704,975 | 704,676 |
Total intangible assets, net | $ 751,380 | 753,234 |
Minimum |  |  |
Unamortized intangible assets |  |  |
Estimated Life | 5 years |  |
Maximum |  |  |
Unamortized intangible assets |  |  |
Estimated Life | 17 years |  |
Licenses |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Subtotal | $ 19,714 | 18,846 |
Unamortized intangible assets |  |  |
Estimated Life | 14 years |  |
Trademarks |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Subtotal | $ 2,194 | 2,194 |
Trademarks | Minimum |  |  |
Unamortized intangible assets |  |  |
Estimated Life | 8 years |  |
Trademarks | Maximum |  |  |
Unamortized intangible assets |  |  |
Estimated Life | 12 years |  |
Customer relationships |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Subtotal | $ 48,371 | 48,071 |
Customer relationships | Minimum |  |  |
Unamortized intangible assets |  |  |
Estimated Life | 15 years |  |
Customer relationships | Maximum |  |  |
Unamortized intangible assets |  |  |
Estimated Life | 17 years |  |
Other |  |  |
Goodwill And Intangible Assets [Line Items] |  |  |
Subtotal | $ 5,876 | $ 4,387 |
Other | Minimum |  |  |
Unamortized intangible assets |  |  |
Estimated Life | 5 years |  |
Other | Maximum |  |  |
Unamortized intangible assets |  |  |
Estimated Life | 10 years |  |

X
- Definition Goodwill And Indefinite Lived Intangible Assets + References No definition available. + Details
Name: | giii_GoodwillAndIndefiniteLivedIntangibleAssets
Namespace Prefix: | giii_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Goodwill And Indefinite Lived Intangible Assets [Abstract] + References No definition available. + Details
Name: | giii_GoodwillAndIndefiniteLivedIntangibleAssetsAbstract
Namespace Prefix: | giii_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Goodwill And Intangible Assets [Line Items] + References No definition available. + Details
Name: | giii_GoodwillAndIntangibleAssetsLineItems
Namespace Prefix: | giii_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
Name: | us-gaap_FiniteLivedIntangibleAssetUsefulLife
Namespace Prefix: | us-gaap_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsGross
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_FiniteLivedIntangibleAssetsNet
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975 + Details
Name: | us-gaap_Goodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trademark to gain or protect exclusive use of a business name, symbol or other device or style for a projected indefinite period of benefit. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
Name: | us-gaap_IndefiniteLivedTrademarks
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Carrying amount of finite-lived intangible assets, indefinite-lived intangible assets and goodwill. Goodwill is an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Intangible assets are assets, not including financial assets, lacking physical substance. + References No definition available. + Details
Name: | us-gaap_IntangibleAssetsNetIncludingGoodwill
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_LicensingAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_TrademarksMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=us-gaap_CustomerRelationshipsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis=giii_OtherFiniteLivedIntangibleAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |