Employee Benefit Plans - Option Plan and Stock Award Activity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Feb. 01, 2020 |
Feb. 02, 2019 |
Feb. 03, 2018 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Options vested and expected to vest, aggregate intrinsic value | $ 48.9 | ||
| Options exercisable, aggregate intrinsic value | 47.5 | ||
| Aggregate intrinsic value of stock options exercised | $ 70.5 | $ 40.6 | $ 57.0 |
| Closing stock price (in usd per share) | $ 24.04 | ||
| Unamortized compensation expense for stock options | $ 1.4 | ||
| Stock Options | |||
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Unrecognized share based compensation cost, weighted-average period of recognition (in years) | 1 year 2 months 8 days | ||