Debt - Credit Facility - Additional Information (Detail) (USD $)	3 Months Ended
	May 04, 2013	Dec. 07, 2011
Swing-line loans [Member]
Line of Credit Facility [Line Items]
Maximum borrowing capacity	$ 12,500,000
Wells Credit Facility [Member]
Line of Credit Facility [Line Items]
Revolving credit facility term		5 years
Maximum borrowing capacity		100,000,000
Revolving credit facility interest rate description	Borrowings under the Wells Credit Facility bear interest at a floating rate which, at the Company's option, may be determined by reference to a LIBOR Rate or a Base Rate (as defined in the Wells Credit Facility, 4.0% as of May 4, 2013).
Revolving credit facility reference to floating interest rate	4.00%
New credit facility maturity date		Dec. 07, 2016
Letters of credit outstanding	11,000,000
Direct borrowings	0
Availability under Wells Fargo Facility	$ 45,000,000