Defined Benefit Plans (Detail) - Schedule of net periodic pension cost (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jul. 28, 2012	Jul. 30, 2011	Jul. 28, 2012	Jul. 30, 2011
Service cost	$ 22	$ 37	$ 44	$ 74
Interest cost	159	168	318	336
Amortization of prior service cost	86	86	172	172
Amortization of net gain		(112)		(224)
Net periodic pension cost	$ 267	$ 179	$ 534	$ 358