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Goodwill and Intangible Assets (Narrative) (Details) (USD $)
12 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Goodwill [Line Items]      
Goodwill impairment loss $ 25,800,000us-gaap_GoodwillImpairmentLoss $ 67,300,000us-gaap_GoodwillImpairmentLoss  
Goodwill 145,627,000us-gaap_Goodwill 171,427,000us-gaap_Goodwill  
Pre-tax, non-cash impairment charge for indefinite-lived intangible assets 4,300,000us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill 5,200,000us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill  
Indefinite lived Intangible Assets 80,630,000us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill 84,930,000us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill  
Intangible assets subject to amortization 28,908,000us-gaap_FiniteLivedIntangibleAssetsNet 33,266,000us-gaap_FiniteLivedIntangibleAssetsNet  
Amortization expense 4,400,000us-gaap_AmortizationOfIntangibleAssets    
Expected amortization expense in 2015 4,400,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseNextTwelveMonths    
Expected amortization expense in 2016 4,400,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo    
Expected amortization expense in 2017 4,400,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearThree    
Expected amortization expense in 2018 4,400,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFour    
Expected amortization expense in 2019 4,400,000us-gaap_FiniteLivedIntangibleAssetsAmortizationExpenseYearFive    
Boston Proper [Member]      
Goodwill [Line Items]      
Goodwill impairment loss 25,800,000us-gaap_GoodwillImpairmentLoss
/ dei_LegalEntityAxis
= chs_SubsidiariesBostonProperMember
67,266,000us-gaap_GoodwillImpairmentLoss
/ dei_LegalEntityAxis
= chs_SubsidiariesBostonProperMember
0us-gaap_GoodwillImpairmentLoss
/ dei_LegalEntityAxis
= chs_SubsidiariesBostonProperMember
Goodwill 48,853,000us-gaap_Goodwill
/ dei_LegalEntityAxis
= chs_SubsidiariesBostonProperMember
74,653,000us-gaap_Goodwill
/ dei_LegalEntityAxis
= chs_SubsidiariesBostonProperMember
141,919,000us-gaap_Goodwill
/ dei_LegalEntityAxis
= chs_SubsidiariesBostonProperMember
Boston Proper trade name [Member]      
Goodwill [Line Items]      
Pre-tax, non-cash impairment charge for indefinite-lived intangible assets 4,300,000us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
/ dei_LegalEntityAxis
= chs_BostonProperTradeNameMember
5,200,000us-gaap_ImpairmentOfIntangibleAssetsIndefinitelivedExcludingGoodwill
/ dei_LegalEntityAxis
= chs_BostonProperTradeNameMember
 
Indefinite lived Intangible Assets $ 41,700,000us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
/ dei_LegalEntityAxis
= chs_BostonProperTradeNameMember
$ 46,000,000us-gaap_IndefiniteLivedIntangibleAssetsExcludingGoodwill
/ dei_LegalEntityAxis
= chs_BostonProperTradeNameMember