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Long-Term Debt, Exclusive of Current Installments (Parenthetical) (Detail) (USD $)
In Thousands, unless otherwise specified
6 Months Ended 6 Months Ended 6 Months Ended 6 Months Ended
Aug. 02, 2014
4.20% Six-Year Notes
Feb. 01, 2014
4.20% Six-Year Notes
Aug. 03, 2013
4.20% Six-Year Notes
Aug. 02, 2014
6.95% Ten-Year Notes
Feb. 01, 2014
6.95% Ten-Year Notes
Aug. 03, 2013
6.95% Ten-Year Notes
Aug. 02, 2014
2.50% Ten-Year Notes
Feb. 01, 2014
2.50% Ten-Year Notes
Aug. 03, 2013
2.50% Ten-Year Notes
Aug. 02, 2014
2.75% Seven-Year Notes
Jun. 05, 2014
2.75% Seven-Year Notes
Debt Disclosure [Line Items]                      
Debt instrument, interest rate 4.20%     6.95%     2.50%     2.75% 2.75%
Redemption date Jul. 08, 2014                    
Maturity date       Apr. 15, 2019     May 15, 2023     Jun. 15, 2021  
Unamortized debt discount   $ 8 $ 11 $ 329 $ 364 $ 399 $ 389 $ 412 $ 434 $ 513  
Effective interest rate 4.20%     6.98%     2.51%     2.76%