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Share-Based Compensation - Fair Value of Stock Options Granted (Detail)
6 Months Ended
Jul. 29, 2017
Jul. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Risk Free Interest Rate 1.70% 1.40%
Expected Volatility 37.90% 28.20%
Expected Life (in years) 8 years 5 years
Expected Dividend Yield 2.00% 1.90%