Net Income (Loss) Per Share of Common Stock - Schedule of Computation of Basic and Diluted Net Income (Loss) Per Share of Common Stock (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended						9 Months Ended
	Sep. 30, 2020	Jun. 30, 2020	Mar. 31, 2020	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Sep. 30, 2020	Sep. 30, 2019
Basic and Diluted
Net income (loss) attributable to common stockholders	$ (122,206)	$ (150,300)	$ (103,925)	$ 230,083	$ (55,830)	$ (128,828)	$ (376,431)	$ 45,425
Weighted-average common shares outstanding	1,076,680			943,350			995,642	935,701
Net income (loss) per share attributable to common stockholders	$ (0.11)			$ 0.24			$ (0.38)	$ 0.05