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Summary of Significant Accounting Policies - Fair Value of Financial Instruments (Details) (Line of Credit, USD $)
In Thousands, unless otherwise specified
May 02, 2015
Jan. 31, 2015
U.S. Revolver Borrowings
    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying Amount $ 0us-gaap_LongTermDebt
/ us-gaap_CreditFacilityAxis
= gco_CreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember		 $ 0us-gaap_LongTermDebt
/ us-gaap_CreditFacilityAxis
= gco_CreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Fair Value 0us-gaap_LongTermDebtFairValue
/ us-gaap_CreditFacilityAxis
= gco_CreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember		 0us-gaap_LongTermDebtFairValue
/ us-gaap_CreditFacilityAxis
= gco_CreditFacilityMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
UK Term Loans
    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Carrying Amount 27,750us-gaap_LongTermDebt
/ us-gaap_CreditFacilityAxis
= gco_UkTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember		 29,155us-gaap_LongTermDebt
/ us-gaap_CreditFacilityAxis
= gco_UkTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember
Fair Value $ 28,138us-gaap_LongTermDebtFairValue
/ us-gaap_CreditFacilityAxis
= gco_UkTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember		 $ 29,126us-gaap_LongTermDebtFairValue
/ us-gaap_CreditFacilityAxis
= gco_UkTermLoansMember
/ us-gaap_LongtermDebtTypeAxis
= us-gaap_LineOfCreditMember