Significant Accounting Policies - Calculation of Net (Loss) income and Number of Shares Used to Compute Basic and Diluted Net (Loss) earnings per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Loss Earnings Per Share [Line Items]
Net (loss) income-basic and diluted	$ (69,956)	$ 7,808	$ (101,519)	$ 6,182
Weighted average shares outstanding-basic	398,187	395,899	397,997	395,272
Weighted average shares outstanding-diluted	398,187	401,767	397,997	402,778
Net (loss) earnings per share-basic	$ (0.18)	$ 0.02	$ (0.26)	$ 0.02
Net (loss) earnings per share-diluted	$ (0.18)	$ 0.02	$ (0.26)	$ 0.02
Stock Options
Loss Earnings Per Share [Line Items]
Effect of dilutive securities		4,212		4,993
Restricted Stock and Restricted Stock Units
Loss Earnings Per Share [Line Items]
Effect of dilutive securities		1,656		2,513