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Schedule of Estimated Fair Value of Options as of Grant Date by Using Black-Scholes Option Pricing Model (Detail) (USD $)
12 Months Ended
Feb. 01, 2014
Feb. 02, 2013
Jan. 28, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Risk-free interest rate 1.42% 0.70% 0.92%
Dividend yield 1.00% 1.00% 1.40%
Expected volatility factor 25.90% 29.00% 31.10%
Expected option life in years 4 years 4 months 24 days 4 years 6 months 5 years
Weighted average fair value of options issued $ 11.92 $ 10.28 $ 6.55