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Shareholders' Equity (Detail) - USD ($)
$ / shares in Units, shares in Millions
1 Months Ended 3 Months Ended
Dec. 31, 2020
Mar. 31, 2022
Mar. 31, 2021
Dec. 31, 2021
Dec. 01, 2020
Stockholders Equity Note Disclosure [Line Items]          
Share repurchase (in shares)   0.0      
Share repurchase     $ 9,600,000    
Dividends (in dollars per share)   $ 0.21 $ 0.20    
Dividends payable   $ 34,700,000   $ 33,000,000  
December 2020 Share Repurchase Program          
Stockholders Equity Note Disclosure [Line Items]          
Repurchase of shares of our common stock up to a maximum aggregate value         $ 750,000,000
Common stock authorized for repurchase, expiration date Dec. 31, 2025        
Share repurchase program remaining available amount   $ 650,000,000