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Long-Term Debt, Exclusive of Current Installments (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified
9 Months Ended
Nov. 01, 2014
Feb. 01, 2014
Nov. 02, 2013
4.20% Six-Year Notes
     
Debt Disclosure [Line Items]      
Debt instrument, interest rate 4.20%    
Redemption date Jul. 08, 2014    
Unamortized debt discount   $ 8 $ 9
Effective interest rate 4.20%    
6.95% Ten-Year Notes
     
Debt Disclosure [Line Items]      
Debt instrument, interest rate 6.95%    
Maturity date Apr. 15, 2019    
Unamortized debt discount 311 364 382
Effective interest rate 6.98%    
2.50% Ten-Year Notes
     
Debt Disclosure [Line Items]      
Debt instrument, interest rate 2.50%    
Maturity date May 15, 2023    
Unamortized debt discount 378 412 423
Effective interest rate 2.51%    
2.75% Seven-Year Notes
     
Debt Disclosure [Line Items]      
Debt instrument, interest rate 2.75%    
Maturity date Jun. 15, 2021    
Unamortized debt discount $ 494    
Effective interest rate 2.76%