Warrants - Schedule of Stockholders' Equity Note, Warrants or Rights (Detail) - 9 months ended Sep. 30, 2021	$ / shares shares	$ / shares shares
Liability Classified Warrant [member]
Class of Warrant or Right [Line Items]
Number of Shares, Beginning Balance | shares	2,485,794	2,485,794
Number of Shares, Issued | shares	0	0
Number of Shares, Exercised | shares	(278,381)	(278,381)
Number of Shares, Expired | shares	(109,482)	(109,482)
Number of Shares, Ending Balance | shares	2,097,931	2,097,931
Weighted Average Exercise Price, Beginning Balance | $ / shares		$ 18.45
Weighted average exercise price, Issued | $ / shares	$ 0
Weighted Average Exercise Price, Exercised | $ / shares		18.16
Weighted Average Exercise Price, Expired | $ / shares		22.90
Weighted Average Exercise Price, Ending Balance | $ / shares		$ 18.26
Weighted Average Contractual Life, Beginning Balance	3 years 4 months 24 days	3 years 4 months 24 days
Weighted Average Contractual Life, Issued
Weighted Average Contractual Life, Exercised	2 years 8 months 12 days	2 years 8 months 12 days
Weighted Average Contractual Life, Expired	1 year 10 days	1 year 10 days
Weighted Average Contractual Life, Ending Balance	2 years 8 months 1 day	2 years 8 months 1 day
Equity Classified Warrant [member]
Class of Warrant or Right [Line Items]
Number of Shares, Beginning Balance | shares	35,000	35,000
Number of Shares, Issued | shares	1,459,044	1,459,044
Number of Shares, Exercised | shares	0	0
Number of Shares, Expired | shares	0	0
Number of Shares, Ending Balance | shares	1,494,044	1,494,044
Weighted Average Exercise Price, Beginning Balance | $ / shares	$ 9.10
Weighted average exercise price, Issued | $ / shares	32.68
Weighted Average Exercise Price, Exercised | $ / shares	0
Weighted Average Exercise Price, Expired | $ / shares	0
Weighted Average Exercise Price, Ending Balance | $ / shares	$ 32.13
Weighted Average Contractual Life, Beginning Balance	3 years 8 months 4 days	3 years 8 months 4 days
Weighted Average Contractual Life, Issued	4 years 6 months 29 days	4 years 6 months 29 days
Weighted Average Contractual Life, Exercised
Weighted Average Contractual Life, Expired
Weighted Average Contractual Life, Ending Balance	4 years 6 months 21 days	4 years 6 months 21 days