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Fair Value Measurements (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Jul. 31, 2021
Jan. 30, 2021
Aug. 01, 2020
Fair Value Measurements      
Carrying amount $ 433,456 $ 418,493 $ 404,573
Closing price of the Company's common stock at the end of Q2 2021 (in dollars per share) $ 104.14    
Conversion price (in dollars per share) $ 34.43    
Amount in which the if-converted value exceeds the principal amount $ 1,200,000    
Level 1      
Fair Value Measurements      
Deferred compensation plan assets held in trust 148,200 $ 125,700  
Level 2      
Fair Value Measurements      
Convertible Senior Notes, fair value $ 1,800,000