Warrants - Summary of Warrants Outstanding to Purchase Shares (Details)	6 Months Ended
	Jun. 30, 2021 $ / shares shares
Warrants And Rights Note Disclosure [Abstract]
Number of warrants, Beginning balance | shares	42,772,992
Number of warrants, Exercised | shares	(2,993,227)
Number of warrants, Ending balance | shares	39,779,765
Weighted average exercise price, Beginning balance | $ / shares	$ 0.90
Weighted average exercise price, Exercised | $ / shares	0.68
Weighted average exercise price, Ending balance | $ / shares	$ 0.92