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Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended		12 Months Ended			3 Months Ended	12 Months Ended	3 Months Ended	12 Months Ended
	May 04, 2013	Apr. 28, 2012	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011	May 04, 2012 Minimum [Member]	Feb. 02, 2013 Minimum [Member]	May 04, 2012 Maximum [Member]	Feb. 02, 2013 Maximum [Member]
Income Tax [Line Items]
Total income taxes paid	$ 8.1	$ 8.9	$ 10.8	$ 1.2	$ 0.1
State income taxes, statute of limitations period (years)						3 years	3 years	4 years	4 years

The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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