Stockholders' Equity - Additional Information (Details) - USD ($)	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020	Dec. 31, 2020	Jan. 31, 2018
Schedule Of Capitalization Equity [Line Items]
Repurchase of common stock, shares	0	4,707,450
Aggregate cost of shares repurchased, common stock		$ 115,000,000
Average price of shares repurchased, common stock		$ 24.32
Remaining authorized share repurchased amount	$ 75,000,000		$ 75,000,000
Treasury stock, shares	18,844,614		18,844,614
Aggregate cost of treasury stock	$ 722,000,000		$ 722,000,000
Maximum
Schedule Of Capitalization Equity [Line Items]
Repurchase of shares of common stock authorized				$ 250,000,000