Stockholders' Equity - Additional Information (Detail) - USD ($)	3 Months Ended
	Mar. 31, 2021	Dec. 31, 2020	Jan. 22, 2016
Class Of Stock [Line Items]
Number of votes per share	one vote per share
Common stock, shares authorized	500,000,000	500,000,000
Common stock, shares issued	93,306,390	93,046,676
Common stock, shares outstanding	93,306,390	93,046,676
Treasury stock, shares	0	0
Preferred Stock, shares authorized	25,000,000	25,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common stock | Stock Repurchase Program
Class Of Stock [Line Items]
Stock repurchase program, announced date	Jan. 25, 2016
Common stock repurchased, Shares	0
Maximum | Common stock | Stock Repurchase Program
Class Of Stock [Line Items]
Authorized to repurchase of common stock			$ 100,000,000