Employee Benefit Plans - Option Plan and Stock Award Activity (Narrative) (Details) - USD ($) $ / shares in Units, $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Jan. 30, 2021 |
Feb. 01, 2020 |
Feb. 02, 2019 |
|
| Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |||
| Options vested and expected to vest, aggregate intrinsic value | $ 111.9 | ||
| Options exercisable, aggregate intrinsic value | 111.0 | ||
| Aggregate intrinsic value of stock options exercised | $ 25.1 | $ 70.5 | $ 40.6 |
| Closing stock price (in dollars per share) | $ 51.46 | ||
| Unamortized compensation expense for stock options | $ 0.2 | ||
| 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) | 5 months 4 days | ||