Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Additional Information - Share-based Compensation (Detail)

v3.5.0.2
Summary of Significant Accounting Policies - Additional Information - Share-based Compensation (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
3 Months Ended 6 Months Ended
Jul. 30, 2016
Aug. 01, 2015
Jul. 30, 2016
Aug. 01, 2015
Employee Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted     107 89
Weighted-average grant date fair value of stock option     $ 52.72 $ 44.79
Compensation expenses $ 1,999 $ 1,908 $ 3,982 $ 3,939
Unrecognized compensation cost 24,247   $ 24,247  
Restricted Stock Award [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted     50 52
Unrecognized compensation cost 15,283   $ 15,283  
Compensation expense 1,884 1,946 $ 3,445 $ 3,157
Performance Based Restricted Stock Units [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Number of shares granted     24 21
Unrecognized compensation cost 8,371   $ 8,371  
Compensation expense $ 957 $ 382 $ 1,435 $ 482