Annual report pursuant to Section 13 and 15(d)

Notes payable - Additional Information (Detail)

v2.4.0.6
Notes payable - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Feb. 02, 2013
Jan. 28, 2012
Line Of Credit Facility Covenant Compliance [Line Items]    
Letters of credit sub facility, maximum borrowing capacity $ 10,000  
Additional credit available under the revolving facility with consent by each lender and other conditions 50,000  
Interest rate on outstanding borrowing under facility Libor plus 1.50%  
Percentage of interest rate on outstanding borrowing under facility 1.50%  
Percentage of unused Line of Credit Facility Fee 0.225%  
Borrowings outstanding 0 0
Standby Letters of Credit [Member]
    
Line Of Credit Facility Covenant Compliance [Line Items]    
Letters of credit sub facility, maximum borrowing capacity $ 200,000