Net Loss Per Share - Calculation of diluted loss per share (Details) - shares shares in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Stock options
Net Loss Per Share
Diluted net income (loss) per share, as their effect would be anti-dilutive	4,204	7,349	4,204	7,349
Restricted stock units
Net Loss Per Share
Diluted net income (loss) per share, as their effect would be anti-dilutive	8,256		8,256
Warrants
Net Loss Per Share
Diluted net income (loss) per share, as their effect would be anti-dilutive	9,876		9,876
Convertible notes
Net Loss Per Share
Diluted net income (loss) per share, as their effect would be anti-dilutive	12,000		12,000
Convertible preferred stock
Net Loss Per Share
Diluted net income (loss) per share, as their effect would be anti-dilutive		94,360		94,360