Selected quarterly financial data (unaudited)

12 Months Ended

Dec. 31, 2018

Quarterly Financial Information Disclosure [Abstract]

Selected quarterly financial data (unaudited)

17. Selected quarterly financial data (unaudited)

Summarized quarterly financial data for the years ended December 31, 2018 and 2017, are set forth in the following tables:

	March 31			June 30			September 30			December 31
	(In thousands, except per share data)
2018
Net revenues	$	3,465		$	3,893		$	4,469		$	16,031
Net (loss)	$	(30,385	)	$	(22,675	)	$	(24,168	)		(9,747	)
Net (loss) per share — basic	$	(0.25	)	$	(0.16	)	$	(0.16	)	$	(0.06	)
Net (loss) per share — diluted	$	(0.25	)	$	(0.16	)	$	(0.16	)	$	(0.06	)
Weighted average common shares used to compute basic    net (loss) per share		120,911			140,054			153,597			161,397
Weighted average common shares used to compute    diluted net (loss) per share		120,911			140,054			153,597			161,397
2017
Net revenues	$	3,009		$	2,163		$	2,043		$	4,530
Net income (loss)	$	(16,324	)	$	(35,339	)	$	(32,886	)	$	(32,784	)
Net income (loss) per share — basic	$	(0.17	)	$	(0.35	)	$	(0.31	)	$	(0.28	)
Net income (loss) per share — diluted		(0.17	)	$	(0.35	)		(0.31	)		(0.28	)
Weighted average common shares used to compute basic net    income (loss) per share		95,744			99,864			104,703			116,451
Weighted average common shares used to compute diluted net    income (loss) per share		95,744			99,864			104,703			116,451