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Debt and Credit Agreements - Deferred Financing Fees (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended 2 Months Ended
Jan. 31, 2015
Feb. 01, 2014
Feb. 02, 2013
Feb. 28, 2013
Debt Instrument [Line Items]        
Amortization of Financing Costs $ 2.0us-gaap_AmortizationOfFinancingCosts $ 3.4us-gaap_AmortizationOfFinancingCosts $ 4.8us-gaap_AmortizationOfFinancingCosts  
January 2014 Notes [Member]        
Debt Instrument [Line Items]        
Accelerated amortization related to early extinguishment of debt     1.0us-gaap_WriteOffOfDeferredDebtIssuanceCost
/ us-gaap_DebtInstrumentAxis
= spls_January2014NotesMember		  
Extinguishment of debt, amount     632.8us-gaap_ExtinguishmentOfDebtAmount
/ us-gaap_DebtInstrumentAxis
= spls_January2014NotesMember		 633.1us-gaap_ExtinguishmentOfDebtAmount
/ us-gaap_DebtInstrumentAxis
= spls_January2014NotesMember
Prepaid Expenses and Other Current Assets [Member]        
Debt Instrument [Line Items]        
Unamortized financing fees, current 2.0us-gaap_DeferredFinanceCostsCurrentNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember		 2.0us-gaap_DeferredFinanceCostsCurrentNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_PrepaidExpensesAndOtherCurrentAssetsMember		    
Other Noncurrent Assets [Member]        
Debt Instrument [Line Items]        
Unamortized financing fees, noncurrent $ 5.6us-gaap_DeferredFinanceCostsNoncurrentNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentAssetsMember		 $ 8.4us-gaap_DeferredFinanceCostsNoncurrentNet
/ us-gaap_BalanceSheetLocationAxis
= us-gaap_OtherNoncurrentAssetsMember