Fair Value Measurements - Summary of Activity Recorded for Derivatives Using Level 3 Inputs (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 02, 2013	Jan. 28, 2012
Derivative [Line Items]
Beginning balance	$ 20,076
Loss on change in fair value	6	5,039
Ending balance	20,082	20,076
Series B Preferred Stock [Member]
Derivative [Line Items]
Issuance of Series B Preferred Stock		$ 15,037