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v3.19.1

Employee Stock Purchase Plan - Additional Information (Details) | 12 Months Ended
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Feb. 02, 2019 | Feb. 03, 2018
Stock-Based Compensation |  |
Risk-free interest rate | 2.56% | 1.53%
Expected life (in years) | 6 months | 6 months
Expected volatility | 32.20% | 45.30%

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