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Stockholders' Deficit - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 8 Months Ended
Oct. 12, 2021
Jul. 21, 2021
Sep. 12, 2021
Sep. 06, 2020
Sep. 12, 2021
Sep. 06, 2020
Jul. 20, 2021
Apr. 30, 2021
Dividends declared per share     $ 0.94 $ 0.78 $ 2.82 $ 2.34    
Number of share repurchased and retired         2,469,473      
Shares repurchased and retired, value     $ 79.7   $ 1,100.0      
Stock repurchased and retired during period, Shares   2,250,786 391,007          
Accelerated Share Repurchase Agreement [Member]                
Stock repurchase program, authorized amount               $ 1,000.0
Common shares     2,250,786   2,250,786      
Stock repurchased and retired during period, Shares     238,190          
New Accelerated Share Repurchase Agreement Two Thousand And Twenty One [Member]                
Stock repurchase program, authorized amount             $ 1,000.0  
Stock repurchase program, Utilized amount cumulatively             $ 1,000.0  
Share Repurchase Program [Member]                
Stock repurchase program, authorized amount     $ 920.3   $ 920.3      
Common shares     218,687   218,687      
Stock repurchased and retired during period, Shares     152,817          
Subsequent Event [Member]                
Dividends declared per share $ 0.94              
Record date of dividend Dec. 15, 2021              
Dividend declared date Oct. 12, 2021              
Dividend payable date Dec. 30, 2021              
Shares repurchased and retired, value $ 100.1              
Stock repurchased and retired during period, Shares 205,145