Fair Value of Financial Instruments - Schedule of Assets and Liabilities Measured at Fair Value (Detail) (USD $) In Thousands, unless otherwise specified	Oct. 28, 2012	Jul. 29, 2012	Apr. 29, 2012	Jan. 29, 2012	Oct. 30, 2011	Jul. 31, 2011	May 01, 2011	Jan. 30, 2011
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments	$ 5,611	$ 5,482	$ 5,608	$ 5,370	$ 5,583	$ 5,631	$ 5,793	$ 5,485
Total financial assets	5,611				5,583
Fair Value Hierarchy Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Short-term Investments	5,611				5,583
Deferred compensation plan liabilities	5,536				5,511
Financial Liabilities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total financial liabilities	$ 5,536				$ 5,511