Related Party Transactions - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended				1 Months Ended
	Feb. 02, 2013	Jan. 28, 2012	Jan. 29, 2011	Apr. 30, 2006	Apr. 30, 2006 Quarterly Payment
Related Party Transaction [Line Items]
Advisory agreement, periodic fee payment					$ 1.0
Advisory agreement, fee as a percentage of financing, acquisition, disposition or change of control				1.00%
Fees paid	4.3	4.3	4.3
Advisory agreement, initial term	10 years
Advisory agreement, term extensions	1 year
Prepaid advisory fees	$ 0.6	$ 0.7