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Share-Based Compensation - Restricted stock units and performance-based restricted stock units (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended 12 Months Ended 65 Months Ended
Oct. 28, 2023
Apr. 30, 2022
Oct. 28, 2023
Oct. 29, 2022
Jan. 28, 2023
Jan. 29, 2022
Jul. 29, 2023
Number              
Forfeited (in shares)     (100)        
Weighted-Average Grant Date Fair Value              
Repurchase and retirement of common stock $ 80,541 $ 40,007 $ 80,000   $ 40,000 $ 60,000 $ 230,000
Unrecognized compensation costs related to non-vested share-based compensation $ 39,900   $ 39,900        
Compensation cost not yet recognized, period for recognition (in years)     2 years 3 months 18 days        
Performance-Based Restricted Stock Units Based On Market Condition              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period (in years)     3 years        
Restricted Stock Units              
Number              
Non-vested balance, beginning balance (in shares)     226,389        
Granted (in shares)     70,520        
Vested (in shares)     (74,970)        
Forfeited (in shares)     (14,385)        
Non-vested balance, ending balance (in shares) 207,554   207,554   226,389    
Weighted-Average Grant Date Fair Value              
Non-vested balance, beginning balance (in dollars per share)     $ 142.20        
Granted (in dollars per share)     198.14        
Vested (in dollars per share)     133.35        
Forfeited (in dollars per share)     153.38        
Non-vested balance, ending balance (in dollars per share) $ 163.63   $ 163.63   $ 142.20    
Restricted Stock Units | Minimum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period (in years)     1 year        
Restricted Stock Units | Maximum              
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]              
Award vesting period (in years)     4 years        
Performance-Based Restricted Stock Units              
Number              
Non-vested balance, beginning balance (in shares)     458,062        
Granted (in shares)     129,442        
Vested (in shares)     (157,192)        
Forfeited (in shares)     (124,972)        
Non-vested balance, ending balance (in shares) 305,340   305,340   458,062    
Weighted-Average Grant Date Fair Value              
Non-vested balance, beginning balance (in dollars per share)     $ 163.56        
Granted (in dollars per share)     244.95        
Vested (in dollars per share)     151.73        
Forfeited (in dollars per share)     158.97        
Non-vested balance, ending balance (in dollars per share) $ 206.03   $ 206.03   $ 163.56    
Treasury Stock | Restricted Stock Units And Performance-Based Restricted Stock Units              
Weighted-Average Grant Date Fair Value              
Shares withheld for taxes (in shares)     84,527 30,380      
Additional paid-in capital              
Weighted-Average Grant Date Fair Value              
Repurchase and retirement of common stock $ 80,536 $ 40,005          
Additional paid-in capital | Restricted Stock Units And Performance-Based Restricted Stock Units              
Weighted-Average Grant Date Fair Value              
Repurchase and retirement of common stock     $ 16,400 $ 4,600