Selected Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

The following tables show a summary of our quarterly financial information for each of the four quarters of 2019 and 2018 and have been prepared in accordance with GAAP for interim financial information. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included.

	2019 Quarter Ended
	March 31		June 30		September 30		December 31
	(in thousands, except per share amounts)
Revenue	$	—	$	1,069	$	630	$	1,949
Loss from continuing operations	$	(35,202)	$	(37,763)	$	(290,478)	$	(56,060)
Loss from discontinued operations	$	—	$	—	$	—	$	—
Net loss	$	(35,202)	$	(37,763)	$	(290,478)	$	(56,060)
Net loss per share, basic and diluted	$	(0.83)	$	(0.89)	$	(6.75)	$	(1.26)

	2018 Quarter Ended
	March 31		June 30		September 30		December 31
	(in thousands, except per share amounts)
Revenue	$	—	$	—	$	—	$	—
Loss from continuing operations	$	(30,180)	$	(28,839)	$	(42,264)	$	(22,433)
Loss from discontinued operations	$	—	$	(198)	$	—	$	—
Net loss	$	(30,180)	$	(29,037)	$	(42,264)	$	(22,433)
Net loss per share, basic and diluted	$	(0.87)	$	(0.83)	$	(1.08)	$	(0.53)