Condensed Consolidated Statements of Comprehensive Loss - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Condensed Consolidated Statements of Comprehensive Loss
Net loss	$ (7,466)	$ (9,508)	$ (177,550)	$ (17,460)
Other comprehensive gain:
Gain on short-term investments		16		1
Total other comprehensive gain:		16		1
Comprehensive loss	$ (7,466)	$ (9,492)	$ (177,550)	$ (17,459)