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Subsequent Events - Additional Information (Detail) - $ / shares
Feb. 23, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Subsequent Event [Line Items]        
Cash dividend per share   $ 0.27 $ 0.25 $ 0.22
Subsequent Event [Member] | Dividend Declared [Member]        
Subsequent Event [Line Items]        
Cash dividend per share $ 0.29      
Date of payment for dividend Mar. 26, 2021      
Date of record for dividend payment Mar. 12, 2021