|
Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 6 Months Ended | ||
|---|---|---|---|---|
|
Aug. 02, 2014
|
Aug. 03, 2013
|
Aug. 02, 2014
|
Aug. 03, 2013
|
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Compensation expenses | $ 7,603 | $ 7,539 | ||
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Employee Stock Option [Member]
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Number of shares granted | 320 | 267 | ||
| Weighted average fair value of stock option | $ 31.74 | $ 40.52 | ||
| Compensation expenses | 2,471 | 3,322 | 4,604 | 5,637 |
| Unrecognized compensation expense | 20,813 | 20,813 | ||
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Restricted Stock [Member]
|
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| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | ||||
| Number of shares granted | 68 | 120 | ||
| Compensation expenses | 1,069 | 1,169 | 2,999 | 1,902 |
| Unrecognized compensation expense | $ 10,943 | $ 10,943 | ||