Summary of Liability Measured at Fair Value on Recurring Basis (Detail) (USD $) In Thousands, unless otherwise specified	Jan. 28, 2012
Significant Other Observable Inputs (Level 2)
Fair Value Assets Liabilities Measured On Recurring Basis [Line Items]
Interest rate swap	$ (2,159)
Carrying Value
Fair Value Assets Liabilities Measured On Recurring Basis [Line Items]
Interest rate swap	$ (2,159)