Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies - Share-based Compensation - Restricted Stock Units (Details)

v3.8.0.1
Summary of Significant Accounting Policies - Share-based Compensation - Restricted Stock Units (Details) - Restricted stock units - USD ($)
shares in Thousands, $ in Thousands
3 Months Ended 9 Months Ended
Oct. 28, 2017
Oct. 29, 2016
Oct. 28, 2017
Oct. 29, 2016
Restricted stock units        
Issued (in shares)     45 52
Compensation expense $ 2,419 $ 1,890 $ 6,872 $ 5,335
Unrecognized compensation cost $ 16,199   $ 16,199