Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) $ in Thousands |
May 05, 2018 |
Feb. 03, 2018 |
Jan. 28, 2017 |
|---|---|---|---|
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||
| Cumulative effect of stock compensation accounting change | $ 0 | ||
| Retained earnings | $ 1,409,452 | 1,009,841 | |
| Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606 | Scenario, Forecast | Minimum | |||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||
| Retained earnings | $ 25,000 | ||
| Accounting Standards Update 2014-09 | Difference between Revenue Guidance in Effect before and after Topic 606 | Scenario, Forecast | Maximum | |||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||
| Retained earnings | $ 40,000 | ||
| Retained Earnings | |||
| New Accounting Pronouncements or Change in Accounting Principle [Line Items] | |||
| Cumulative effect of stock compensation accounting change | $ (1,969) |