Fair Value Measurements - Additional Information (Details) - USD ($)	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Mar. 24, 2020	Dec. 31, 2019
Fair Value Disclosures [Abstract]
Financial instruments	$ 0
Transfers within hierarchy	$ 0	$ 0
Preferred stock tranche rights liability			$ 0	$ 5,400,000
Anti-dilution warrants				$ 0