Share-based Awards - Black-Scholes Valuation Model Weighted-Average Assumptions (Detail) |
12 Months Ended | ||
|---|---|---|---|
Jan. 30, 2016 |
Jan. 31, 2015 |
Feb. 01, 2014 |
|
| Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract] | |||
| Volatility rate | 37.90% | 40.70% | 49.20% |
| Average risk-free interest rate | 1.60% | 1.40% | 0.90% |
| Average expected life (in years) | 4 years 10 months 24 days | 3 years 9 months 18 days | 4 years 4 months 24 days |
| Dividend yield | 0.00% | 0.00% | 0.00% |
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition The estimated dividend rate (a percentage of the share price) to be paid (expected dividends) to holders of the underlying shares over the option's term. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition The risk-free interest rate assumption that is used in valuing an option on its own shares. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Weighted average expected volatility rate of share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
- Definition Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|