Warrant Liability - Schedule of Stockholders' Equity Note, Warrants or Rights (Detail)	3 Months Ended
	Mar. 31, 2020 $ / shares shares
Class of Warrant or Right [Line Items]
Weighted Average Exercise Price, Beginning Balance | $ / shares	$ 18.59
Weighted Average Exercise Price, Granted | $ / shares	0
Weighted Average Exercise Price, Ending Balance | $ / shares	$ 18.59
Weighted Average Contractual Life, Beginning Balance	4 years 10 months 9 days
Weighted Average Contractual Life, Ending Balance	4 years 10 months 9 days
Related Parties [member]
Class of Warrant or Right [Line Items]
Number of Shares, Beginning Balance	19,341
Number of Shares, Granted	0
Number of Shares, Ending Balance	19,341
Third Parties [member]
Class of Warrant or Right [Line Items]
Number of Shares, Beginning Balance	2,387,470
Number of Shares, Granted	0
Number of Shares, Ending Balance	2,387,470