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Stockholders' Equity - Additional Information (Detail) - USD ($)
3 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]    
Number of stock options granted 0  
Number of stock options forfeited 0  
Dividend declared and paid per share $ 0 $ 0
Authorized to purchase of common stock under the stock repurchase program $ 535,000,000.0  
Repurchase of common stock 0 0
Cumulative repurchase of common stock 16,300,000  
Aggregate cost of repurchase of common stock $ 474,900,000