XML 40 R27.htm IDEA: XBRL DOCUMENT v3.7.0.1
Stock-Based Compensation - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Apr. 29, 2017
Apr. 30, 2016
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]    
Compensation expense related to stock-based awards $ 5,794 $ 5,546
Number of shares available for future grants (shares) 4,100,000  
Number of stock options granted (in shares) 0 0