Net Loss Attributable to Common Stockholders Per Share (Schedule of Antidilutive Securities) (Details) - shares	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the calculation of net loss per share (in shares)	12,828,516	7,600,514	12,828,516	7,600,514
Options to purchase common stock
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the calculation of net loss per share (in shares)	8,105,378	7,080,020	8,105,378	7,080,020
Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive securities excluded from the calculation of net loss per share (in shares)	4,723,138	520,494	4,723,138	520,494