Summary of Significant Accounting Policies (Cash and Cash Equivalents) (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 30, 2016	Jan. 31, 2015
Significant Accounting Policies [Line Items]
Cash Equivalents	$ 22.6	$ 43.1
Minimum [Member]
Significant Accounting Policies [Line Items]
Debit and credit card transaction processing period (hours)	24 hours
Maximum [Member]
Significant Accounting Policies [Line Items]
Debit and credit card transaction processing period (hours)	48 hours
Cash and Cash Equivalents [Member]
Significant Accounting Policies [Line Items]
Cash Equivalents	$ 3.9	$ 3.1