Revenue Credit Income (Details) - USD ($) $ in Millions	Aug. 04, 2018	Feb. 03, 2018	Jul. 29, 2017	Jan. 28, 2017
Prepaid Expense and Other Assets, Current [Abstract]
Credit Income Receivable	$ 4.7	$ 5.8	$ 4.1	$ 4.9

Amount of receivable for credit income realized related to private label credit card agreements.

No definition available.

Name:	ssi_CreditIncomeReceivable
Namespace Prefix:	ssi_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant