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Restructuring and Other Charges (Summary of Charges) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges, pre-tax $ 16,745us-gaap_RestructuringCharges $ 0us-gaap_RestructuringCharges $ 0us-gaap_RestructuringCharges
Severance and other charges [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges, pre-tax 8,191us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= us-gaap_EmployeeSeveranceMember
   
Store impairment charges [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges, pre-tax 5,354us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= chs_ImpairmentChargesStoreClosuresMember
   
Assets Held for sale impairment charges [Member]      
Restructuring Cost and Reserve [Line Items]      
Restructuring and other charges, pre-tax $ 3,200us-gaap_RestructuringCharges
/ us-gaap_RestructuringCostAndReserveAxis
= chs_ImpairmentChargesAssetsHeldforSaleMember