Property and Equipment Net (Detail) (USD $) In Thousands, unless otherwise specified	Jul. 28, 2012	Jan. 28, 2012
Property, Plant and Equipment [Line Items]
Machinery and equipment	$ 510,320	$ 489,481
Buildings	144,596	144,596
Computer software	86,819	81,852
Land	69,246	69,246
Building improvements	42,200	42,083
Leasehold improvements	38,879	37,237
Furniture and fixtures	22,840	24,450
Construction in progress	10,409	9,846
Property, Plant and Equipment, Gross, Total	925,309	898,791
Less: Accumulated depreciation and amortization	(544,155)	(514,990)
Property and equipment, net	$ 381,154	$ 383,801