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Shareholder's Equity (Detail) - USD ($)
12 Months Ended
May 08, 2018
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Dec. 07, 2021
Shareholders Equity          
Common stock, shares authorized   426,000,000.0 426,000,000.0    
Common stock, par value (per share)   $ 0.01 $ 0.01    
Share repurchases   $ 50,000,000.0 $ 150,000,000.0 $ 150,200,000  
Increase (Decrease) to Quarterly Dividend Rate         5.00%
Prior Quarter Approved Quarterly Dividend     21.00%    
Dividends payable amount per share   $ 0.22      
Dividends payable   $ 36,200,000 $ 33,000,000.0    
Dividends paid per common share   $ 0.84 $ 0.80 $ 0.76  
May 2018 Share Repurchase Program [Member]          
Shareholders Equity          
Authorized amount to repurchase shares of common stock $ 750,000,000        
Stock Repurchase Program Expiration Date May 31, 2021        
Share repurchase (in shares)     800,000    
Share repurchases     $ 50,000,000    
December 2020 Share Repurchase Program [Member]          
Shareholders Equity          
Authorized amount to repurchase shares of common stock         $ 750,000,000
Share repurchase (in shares)     1,300,000    
Share repurchases     $ 100,000,000    
Remaining authorized repurchase amount   $ 600,000,000      
Common shares          
Shareholders Equity          
Share repurchase (in shares)     2,100,000 3,700,000  
Common shares | December 2020 Share Repurchase Program [Member]          
Shareholders Equity          
Share repurchase (in shares)   1,000,000.0      
Capital contribution reserve          
Shareholders Equity          
Share repurchases     $ 150,000,000 $ 150,200,000  
Capital contribution reserve | December 2020 Share Repurchase Program [Member]          
Shareholders Equity          
Share repurchases   $ 50,000,000