Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Black-Scholes Valuation Model Weighted-Average Assumptions (Detail)

v3.5.0.2
Summary of Significant Accounting Policies - Black-Scholes Valuation Model Weighted-Average Assumptions (Detail)
6 Months Ended
Jul. 30, 2016
Aug. 01, 2015
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]    
Volatility rate 35.00% 38.00%
Average risk-free interest rate 1.20% 1.10%
Average expected life (in years) 3 years 6 months 3 years 7 months 6 days
Dividend yield 0.00% 0.00%