Net Loss Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Calculation of Net Income (Loss) and Number of Shares Used to Compute Basic and Diluted Earnings Per Share

The calculation of net loss and the number of shares used to compute basic and diluted earnings per share for the three-month and six-month periods ended June 30, 2013 and 2012 are as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
In thousands, except per share data	2013			2012			2013			2012
Net loss	$	(68,985	)	$	(51,312	)	$	(133,655	)	$	(107,206	)
Net loss per share – basic and diluted	$	(0.37	)	$	(0.31	)	$	(0.74	)	$	(0.66	)
Weighted average shares – basic and diluted		184,726			165,848			181,651			163,409

Potentially Dilutive Securities Excluded in Computation of Net Income (Loss) Per Share

For the three-month and six-month periods ended June 30, 2013 and 2012, the following potentially dilutive securities were not included in the computation of net loss per share because the effect would be anti-dilutive:

	Three Months Ended June 30,				Six Months Ended June 30,
In thousands	2013		2012		2013		2012
Stock options		10,640		8,056		10,640		8,056
Restricted stock and stock units		2,073		2,139		2,073		2,139
		12,713		10,195		12,713		10,195