v3.22.2.2
Shareholder Rights Plan (Details)
12 Months Ended
Jul. 29, 2022
$ / shares
Right
shares
Jul. 30, 2021
$ / shares
Shareholder Rights Plan [Abstract]    
Par value of common share outstanding (in dollars per share) $ 0.01 $ 0.01
Rights Agreement [Member]    
Shareholder Rights Plan [Abstract]    
Dividend declaration date Apr. 09, 2021  
Number of preferred share purchase right declared as dividend for each share of common stock outstanding | Right 1  
Par value of common share outstanding (in dollars per share) $ 0.01  
Dividend record date Apr. 19, 2021  
Dividend payment date Apr. 19, 2021  
Rights expiration date Apr. 09, 2024  
Exercise price of each right (in dollars per share) $ 600  
Rights exercisable (in shares) | shares 0  
Exercise price of each right, if a person or group becomes an acquiring person (in dollars per share) $ 600  
Market value of each right If a person or group becomes an acquiring person (in dollars per share) 1,200  
Exercise price of each right, if the company is later acquired in a merger (in dollars per share) 600  
Market value of each right, if the company is later acquired in a merger (in dollars per share) 1,200  
Redemption price of the right (in dollars per share) $ 0.01  
Subsequent offering period 20 days  
Number of common stock shares that can be exchanged for each right if rights were extinguished (in shares) | shares 1  
Rights Agreement [Member] | Minimum [Member]    
Shareholder Rights Plan [Abstract]    
Period before rights can be exercised 10 days  
Percentage of outstanding common stock ownership required to qualify for an "Acquiring Person" 20.00%  
Offering period 60 days  
Percentage of an ownership of common stock by an Acquiring Person before board of directors may extinguish right 50.00%  
Percentage of adjustment to exercise price 1.00%  
Rights Agreement [Member] | Series A Junior Participating Preferred Stock [Member]    
Shareholder Rights Plan [Abstract]    
Common share equivalent for each preferred share portion (in shares) | shares 1  
Quarterly dividends payments per share (in dollars per share) $ 0.01  
Amount entitled to receive per share upon liquidation of preferred share (in dollars per share) $ 1  
Shares of a Preferred Share used in Provisions 0.01  
2018 Plan [Member]    
Shareholder Rights Plan [Abstract]    
Rights expiration date Apr. 09, 2021