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Fair Value Measurements - Summary of Activity Recorded for Derivatives Using Level 3 Inputs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	May 04, 2013	Apr. 28, 2012
Fair Value Disclosures [Abstract]
Beginning balance as of February 2, 2013	$ 20,082
Loss on change in fair value	9,290	(6,333)
Ending balance as of May 4, 2013	$ 29,372

Fair value of derivative liability, presented on a gross basis even when the derivative instrument is subject to master netting arrangements and qualifies for net presentation in the statement of financial position.

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