Share-Based Compensation (Share-Based Compensation Valuation of Stock Options) (Details) $ in Thousands |
3 Months Ended |
|---|---|
|
May 05, 2018
USD ($)
shares
| |
| Share-based Compensation [Abstract] | |
| Share-based Compensation Arrangement by Share-based Payment Award, Options, Number of Shares, Period Increase (Decrease) | shares | 0 |
| Stock Issued During Period, Value, Stock Options Exercised | $ | $ 1,222 |