Selected Quarterly Financial Data (Unaudited)

12 Months Ended

Dec. 31, 2019

Quarterly Financial Information Disclosure [Abstract]

Selected Quarterly Financial Data (Unaudited)

13. Selected Quarterly Financial Data (Unaudited)

The following table contains quarterly financial information for 2019 and 2018. The Company believes that the following information reflects all normal recurring adjustments necessary for a fair statement of the information for the periods presented. The operating results for any quarter are not necessarily indicative of results for any future period.

	2019
	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Total
	(in thousands, except per share amounts)
Total revenue	$	465		$	873		$	3,570		$	1,960		$	6,868
Total operating costs and expenses		170,317			177,330			190,747			176,598			714,992
Loss from operations		(169,852	)		(176,457	)		(187,177	)		(174,638	)		(708,124	)
Net loss		(163,406	)		(168,221	)		(179,958	)		(168,653	)		(680,238	)
Net loss per share—basic and diluted	$	(3.37	)	$	(3.28	)	$	(3.48	)	$	(3.25	)	$	(13.38	)

	2018
	First Quarter			Second Quarter			Third Quarter			Fourth Quarter			Total
	(in thousands, except per share amounts)
Total revenue	$	—		$	90,000		$	—		$	273		$	90,273
Total operating expenses		78,119			112,147			128,745			164,500			483,511
Loss from operations		(78,119	)		(22,147	)		(128,745	)		(164,227	)		(393,238	)
Net loss		(74,598	)		(16,978	)		(122,918	)		(158,388	)		(372,882	)
Net loss per share—basic and diluted	$	(1.68	)	$	(0.36	)	$	(2.63	)	$	(3.38	)		(8.08	)