Stockholders' Equity - Additional Information (Detail) - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract]
Dividend declared and paid per share
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