Selected Quarterly Financial Data (Unaudited)

The following data contain certain corrections of errors identified in previously reported amounts. See Note 2, Summary of Significant Accounting Policies. The table below sets forth certain unaudited statements of comprehensive loss data, and net loss per common share data, for each quarter of 2018 and 2017:

(in thousands, except per share data)



	Quarter Ended
	March 31			June 30			September 30			December 31
				(Unaudited)
2018
Revenues	$	25,374		$	13,798		$	6,966		$	17,071
Loss from operations	$	(37,713	)	$	(30,272	)	$	(22,927	)	$	(12,367	)
Net loss	$	(41,822	)	$	(34,549	)	$	(27,396	)	$	(16,781	)
Net loss per common share, basic and diluted	$	(0.40	)	$	(0.33	)	$	(0.26	)	$	(0.16	)
Shares used in computing net loss per common share, basic and diluted	105,668			105,848			105,881			105,920
2017
Revenues	$	17,962		$	12,087		$	27,674		$	33,966
Loss from operations	$	(39,512	)	$	(33,491	)	$	(28,605	)	$	(29,016	)
Net loss	$	(31,918	)	$	(34,657	)	$	(29,809	)	$	(26,609	)
Net loss per common share, basic and diluted	$	(0.31	)	$	(0.33	)	$	(0.28	)	$	(0.25	)
Shares used in computing net loss per common share, basic and diluted	104,461			105,300			105,582			105,588

For all periods presented, the weighted average number of shares outstanding are the same for both basic and diluted net loss per common share. For these periods, shares associated with convertible debt, stock options and restricted stock units are not included in the weighted average number of shares of common stock outstanding because they are antidilutive.

The impact of the error corrections are presented on a “Previously reported,” “Adjustments,” and “As adjusted” basis in the following quarterly financial data for 2017 and 2018 (in thousands, except per share data):




	Three Months Ended March 31, 2018							Three Months Ended March 31, 2017
	Previously reported			Adjustments	As adjusted			Previously reported			Adjustments		As adjusted
Revenues	$	25,207		167	$	25,374		$	18,293		(331	)	$	17,962
Loss from operations	$	(37,966	)	253	$	(37,713	)	$	(42,485	)	2,973		$	(39,512	)
Net loss	$	(42,075	)	253	$	(41,822	)	$	(34,891	)	2,973		$	(31,918	)
Net loss per common share, basic and diluted	$	(0.40	)	—	$	(0.40	)	$	(0.33	)	0.02		$	(0.31	)
Shares used in computing net loss per common share, basic and diluted	105,668				105,668			104,461					104,461

	Three Months Ended June 30, 2018							Three Months Ended June 30, 2017
	Previously reported			Adjustments	As adjusted			Previously reported			Adjustments		As adjusted
Revenues:	$	13,753		45	$	13,798		$	12,053		34		$	12,087
Loss from operations	$	(30,429	)	157	$	(30,272	)	$	(33,893	)	402		$	(33,491	)
Net loss	$	(34,706	)	157	$	(34,549	)	$	(35,059	)	402		$	(34,657	)
Net loss per common share, basic and diluted	$	(0.33	)	—	$	(0.33	)	$	(0.33	)	—		$	(0.33	)
Shares used in computing net loss per common share, basic and diluted	105,848				105,848			105,300					105,300

	Three Months Ended September 30, 2018							Three Months Ended September 30, 2017
	Previously reported			Adjustment	As adjusted			Previously reported			Adjustment		As adjusted
Revenues:	$	6,856		110	$	6,966		$	26,942		732		$	27,674
Loss from operations	$	(23,043	)	116	$	(22,927	)	$	(29,518	)	913		$	(28,605	)
Net loss	$	(27,512	)	116	$	(27,396	)	$	(30,722	)	913		$	(29,809	)
Net loss per common share, basic and diluted	$	(0.26	)	—	$	(0.26	)	$	(0.29	)	0.01		$	(0.28	)
Shares used in computing net loss per common share, basic and diluted	105,881				105,881			105,582					105,582

								Three Months Ended December 31, 2017
								Previously reported			Adjustment		As adjusted
Revenues:								$	33,047		919		$	33,966
Loss from operations								$	(30,785	)	1,769		$	(29,016	)
Net loss								$	(28,378	)	1,769		$	(26,609	)
Net loss per common share, basic and diluted								$	(0.27	)	0.02		$	(0.25	)
Shares used in computing net loss per common share, basic and diluted								105,588					105,588