Loss Per Share - Basic and Diluted (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net loss	$ (61,200)	$ (17,027)	$ (22,803)
Denominator:
Weighted-average common shares outstanding, basic (in shares)	155,066	100,023	99,272
Weighted-average common shares outstanding, diluted (in shares)	155,066	100,023	99,272
Net loss per share attributable to common stockholders, basic (in USD per share)	$ (0.39)	$ (0.17)	$ (0.23)
Net loss per share attributable to common stockholders, diluted (in USD per share)	$ (0.39)	$ (0.17)	$ (0.23)