Net and Comprehensive Income (Loss) Per Share Attributable to Common Stockholders - Schedule of Computation of Basic and Diluted Net and Comprehensive Income (Loss) Per Share (Detail) - USD ($)	3 Months Ended				6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Mar. 31, 2019	Jun. 30, 2020	Jun. 30, 2019
Earnings Per Share [Abstract]
Net and comprehensive income (loss) per share	$ 9,276,032	$ (3,918,663)	$ (5,683,616)	$ (8,492,825)	$ 5,357,369	$ (14,176,441)
Weighted average common shares used in computing EPS
Basic	40,588,004		40,588,004		40,588,004	40,588,004
Diluted	40,905,288		40,588,004		40,747,960	40,588,004
Basic and diluted EPS	$ 0.23		$ (0.14)		$ 0.13	$ (0.35)