Summary of Significant Accounting Policies - Share-based Compensation - Stock Options (Details) - Stock options - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Oct. 28, 2017 |
Oct. 29, 2016 |
Oct. 28, 2017 |
Oct. 29, 2016 |
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| Stock options | ||||
| Granted (in shares) | 106 | 109 | ||
| Compensation expense | $ 2,212 | $ 1,983 | $ 6,589 | $ 5,965 |
| Weighted-average grant date fair value of options granted (in dollars per share) | $ 69.61 | $ 52.95 | ||
| Unrecognized compensation expense | $ 20,562 | $ 20,562 | ||
| X | ||||||||||
- Definition Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Unrecognized cost of unvested share-based compensation awards. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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| X | ||||||||||
- Definition Net number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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