Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2021

Quarterly Financial Information Disclosure [Abstract]

Summary of Quarterly Financial Data

The following tables present selected quarterly financial data for the years presented (in thousands, except per share data):

	Three Months Ended
2021	December 31,			September 30,			June 30,			March 31,
Revenues	$	435		$	182		$	463		$	167
Loss from continuing operations		(82,787	)		(36,874	)		(41,400	)		(17,460	)
Loss from discontinued operations		(10,087	)		(6,870	)		(37,131	)		(14,803	)
Net loss		(92,874	)		(43,744	)		(78,531	)		(32,263	)
Net loss attributable to common stockholders		(92,874	)		(43,744	)		(78,531	)		(32,263	)
Net loss per share, basic and diluted		(0.56	)		(0.46	)		(1.23	)		(0.56	)
2020
Revenues	$	106		$	56		$	—		$	—
Loss from continuing operations		(52,526	)		(33,142	)		(32,627	)		13,209
Loss from discontinued operations		(23,002	)		(13,923	)		(20,156	)		(30,361	)
Net loss		(75,528	)		(47,065	)		(52,783	)		(17,152	)
Net loss attributable to common stockholders		(75,528	)		(47,065	)		(53,051	)		(17,152	)
Net loss per share, basic and diluted		(1.53	)		(1.01	)		(6.11	)		(3.43	)