Net Loss Per Share

12 Months Ended

Dec. 31, 2015

Net Loss Per Share

12. Net Loss Per Share

Basic net loss per share amounts have been computed based on the weighted-average number of common shares outstanding. Diluted net loss per share amounts have been computed based on the weighted-average number of common shares outstanding plus the dilutive effect, if any, of potential common shares. The computation of potential common shares has been performed using the treasury stock method. Because of the net loss reported in each period, diluted and basic net loss per share amounts are the same.

The calculation of net loss and the number of shares used to compute basic and diluted earnings per share for the years ended December 31, 2015, 2014 and 2013 are as follows:

In thousands, except per share amounts	2015			2014			2013
Net loss	$	(231,156	)	$	(162,602	)	$	(274,158	)
Weighted average shares outstanding – basic and diluted		188,669			186,835			183,575
Net loss per share – basic and diluted	$	(1.23	)	$	(0.87	)	$	(1.49	)

For the years ended December 31, 2015, 2014 and 2013, the following potentially dilutive securities were not included in the computation of net loss per share because the effect would be anti-dilutive:

In thousands	2015		2014		2013
Stock options		10,233		10,148		10,380
Restricted stock and restricted stock units		4,493		3,503		2,048
Convertible notes		21,500		21,500		—
Warrants		21,500		21,500		—
		57,726		56,651		12,428