Quarterly report pursuant to Section 13 or 15(d)

Notes payable - Additional Information (Detail)

v2.4.0.6
Notes payable - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Oct. 27, 2012
Jan. 28, 2012
Oct. 29, 2011
Line of Credit Facility [Line Items]      
Letters of credit sub facility, maximum borrowing capacity $ 200,000    
Additional credit available under the revolving facility with consent by each lender and other conditions 50,000    
Percentage of unused line of credit facility fee 0.225%    
Interest rate on outstanding borrowing under facility Libor plus 1.50%    
Borrowings outstanding         
Standby Letters of Credit [Member]
     
Line of Credit Facility [Line Items]      
Letters of credit sub facility, maximum borrowing capacity $ 10,000