Net Loss per Share - Anti-dilutive Securities (Details) - shares	6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Securities excluded from the calculation of diluted net loss per share attributable to common stockholders
Amount of antidilutive securities excluded from computation of earnings per share	13,065,820	12,692,732
Stock options
Securities excluded from the calculation of diluted net loss per share attributable to common stockholders
Amount of antidilutive securities excluded from computation of earnings per share	1,448,537	1,741,465
Restricted stock and restricted stock units
Securities excluded from the calculation of diluted net loss per share attributable to common stockholders
Amount of antidilutive securities excluded from computation of earnings per share	2,324,497	1,658,481
Common stock warrants/Convertible note warrants
Securities excluded from the calculation of diluted net loss per share attributable to common stockholders
Amount of antidilutive securities excluded from computation of earnings per share	4,646,393	4,646,393
Conversion of convertible senior subordinated notes
Securities excluded from the calculation of diluted net loss per share attributable to common stockholders
Amount of antidilutive securities excluded from computation of earnings per share	4,646,393	4,646,393