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Summary of Significant Accounting Policies (Details 7) (USD $)
In Thousands, unless otherwise specified
May 02, 2015
Jan. 31, 2015
Trademarks    
Trademarks, net $ 39,626chke_FiniteAndIndefiniteLivedTrademarksNet $ 39,821chke_FiniteAndIndefiniteLivedTrademarksNet
Trademarks    
Trademarks    
Accumulated amortization (17,004)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ chke_IntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		 (16,794)us-gaap_FiniteLivedIntangibleAssetsAccumulatedAmortization
/ chke_IntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember
Trademarks, net 39,626chke_FiniteAndIndefiniteLivedTrademarksNet
/ chke_IntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember		 39,821chke_FiniteAndIndefiniteLivedTrademarksNet
/ chke_IntangibleAssetsByMajorClassAxis
= us-gaap_TrademarksMember
Acquired Trademarks    
Trademarks    
Trademarks, gross 47,994chke_FiniteAndIndefiniteLivedTrademarksGross
/ chke_IntangibleAssetsByMajorClassAxis
= chke_AcquiredTrademarksMember		 47,994chke_FiniteAndIndefiniteLivedTrademarksGross
/ chke_IntangibleAssetsByMajorClassAxis
= chke_AcquiredTrademarksMember
Other Trademarks    
Trademarks    
Trademarks, gross $ 8,636chke_FiniteAndIndefiniteLivedTrademarksGross
/ chke_IntangibleAssetsByMajorClassAxis
= chke_OtherTrademarksMember		 $ 8,621chke_FiniteAndIndefiniteLivedTrademarksGross
/ chke_IntangibleAssetsByMajorClassAxis
= chke_OtherTrademarksMember