| 
           Notes Payable - Additional Information (Detail) (USD $) 
        In Thousands, unless otherwise specified  | 
        3 Months Ended | ||
|---|---|---|---|
| 
           May 03, 2014 
         | 
        
           Feb. 01, 2014 
         | 
        
           May 04, 2013 
         | 
      |
| Line of Credit Facility [Line Items] | |||
| Letters of credit, maximum borrowing capacity | $ 200,000 | ||
| 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 unused Line of Credit Facility Fee | 0.20% | ||
| Outstanding debt | 0 | 0 | 0 | 
| 
           Sub facility for Standby Letters of Credit [Member] 
         | 
        |||
| Line of Credit Facility [Line Items] | |||
| Letters of credit, maximum borrowing capacity | $ 10,000 | 
| X | ||||||||||
| 
             
- Definition 
          Additional credit available under revolving facility with consent by each lender and other conditions. No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Percentage of unused line of credit facility fee. No definition available. 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Amount borrowed under the credit facility as of the balance sheet date. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Description of the interest rate for the amounts borrowed under the credit facility, including the terms and the method for determining the interest rate (for example, fixed or variable, LIBOR plus a percentage, increasing rate, timing of interest rate resets, remarketing provisions). Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  | 
        
| X | ||||||||||
| 
             
- Details 
          
  | 
        
| X | ||||||||||
| 
             
- Definition 
          Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. Reference 1: http://www.xbrl.org/2003/role/presentationRef 
  |