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Stock Based Compensation - Additional Information (Detail) - USD ($)
$ / shares in Units, $ in Millions
3 Months Ended 9 Months Ended
Sep. 20, 2022
Jun. 09, 2021
Sep. 30, 2022
Sep. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Number of common stock available for future grant     12,763,009 12,763,009
Aggregate amount of special dividend payment $ 45.0      
Cash dividends paid per common share $ 1.43   $ 1.43 $ 1.43
2018 Omnibus Incentive Plan        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Increase in number of shares of common stock reserved for issuance   2,500,000   14,860,784
Common Stock, Capital Shares Reserved for Future Issuance   5,300,000 20,160,784 20,160,784
2018 Omnibus Incentive Plan | Performance-Based Stock Option Grants        
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]        
Issuance of option grants to purchase common stock shares     400,000 400,000