Business Combination - Pro Forma Financial Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019
Total Revenue
Pro forma		$ 36,532		$ 123,242
As reported	$ 28,513	22,211	$ 130,859	71,439
Net Loss Attributable to Common Shareholders
Pro forma		(26,761)		(66,564)
As reported	$ (68,149)	$ (24,635)	$ (135,669)	$ (69,154)
Net Loss per Diluted Common Share
Pro forma (in usd per share)		$ (0.81)		$ (2.02)
As reported (in usd per share)	$ (2.23)	$ (0.75)	$ (4.44)	$ (2.09)