Selected quarterly financial data (unaudited)

12 Months Ended

Dec. 31, 2015

Selected quarterly financial data (unaudited)

19. Selected quarterly financial data (unaudited)

Summarized quarterly financial data for the years ended December 31, 2015 and 2014 are set forth in the following tables:

	March 31			June 30			September 30			December 31
	(In thousands, except per share data)
2015
Net loss	$	(30,658	)	$	(28,910	)	$	(31,857	)	$	(277,020	)
Net loss per share — basic and diluted	$	(0.08	)	$	(0.07	)	$	(0.08	)	$	(0.66	)
Weighted average common shares used to compute basic and diluted net loss per share		398,916			401,018			405,199			419,314

	March 31			June 30			September 30			December 31
	(In thousands, except per share data)
2014
Net loss	$	(52,056	)	$	(73,365	)	$	(36,520	)	$	(36,439	)
Net loss per share — basic and diluted	$	(0.14	)	$	(0.19	)	$	(0.09	)	$	(0.09	)
Weighted average common shares used to compute basic and diluted net loss per share		368,784			380,770			394,163			396,793

Impairment charges recorded in 2015 for $242.7 million related to long-lived assets, inventory and loss on purchase commitments.