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Summary of Business Activities - Additional Information (Detail) - USD ($)
3 Months Ended 6 Months Ended
Dec. 30, 2019
Nov. 22, 2019
Nov. 20, 2019
Dec. 29, 2018
Dec. 28, 2019
Dec. 29, 2018
Nov. 13, 2018
Business Description [Line Items]              
Repurchased and retired shares, value       $ 5,200,000   $ 5,200,000  
Underwriter's Option [Member]              
Business Description [Line Items]              
Stock issued     10,120,000        
Shares issued, aggregate offering price $ 514,900,000            
Underwriting discount per share $ 1.55            
Discounts on underwriting $ 18,000,000.0            
Direct offering expenses 5,900,000            
Net proceeds received from common stock offering $ 491,000,000.0            
Underwriter's Option [Member] | Forward Sale [Member]              
Business Description [Line Items]              
Stock issued   1,518,000          
Stock issued, price per share $ 42.70            
Maximum [Member] | Underwriter's Option [Member] | Forward Sale [Member]              
Business Description [Line Items]              
Option to purchase common stock     1,518,000        
Common Stock [Member]              
Business Description [Line Items]              
Number of shares repurchased and retired       200,000   200,000  
Share repurchase plan, remaining available amount         $ 240,700,000    
Number of shares repurchased         0    
Common Stock [Member] | Maximum [Member]              
Business Description [Line Items]              
Share repurchase program, authorized amount             $ 250,000,000