Fair Value Measurements - Summary of Activity Recorded for Derivatives Using Level 3 Inputs (Detail) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Feb. 01, 2014	Feb. 02, 2013	Jan. 28, 2012
Derivative Liability [Roll Forward]
Beginning balance	$ 20,082	$ 20,076	$ 0
Issuance of Series B Preferred Stock	0	0	15,037
Loss on change in fair value	10,638	6	5,039
Ending balance	$ 30,720	$ 20,082	$ 20,076