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Shareholders' Equity (Common Stock) (Details) - USD ($)
12 Months Ended
Feb. 02, 2019
Feb. 03, 2018
Jan. 28, 2017
Sep. 27, 2012
Class of Stock [Line Items]        
Number of shares of common stock reserved for issuance (shares)       500,000
Discount on common stock fair value for employee purchases (percent)       10.00%
Percentage of shares vested (percent) 33.00% 33.00% 33.00%  
Compensation expense $ 12,000,000 $ 16,400,000 $ 12,000,000  
Employee stock purchase plan [Member]        
Class of Stock [Line Items]        
Stock Issued During Period, Shares, Employee Stock Purchase Plans 3,413 4,465 5,087  
Compensation expense $ 32,400 $ 21,300 $ 19,000  
Proceeds from Issuance of Common Stock $ 400,000 $ 300,000 $ 200,000