Basic and Diluted Net Income (Loss) Per Share (Tables)

3 Months Ended

Mar. 31, 2015

Mar. 31, 2014

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]


(B)	For the three months ended March 31, 2015 and 2014, the following equity awards, by type, were excluded from the calculation, as their effect would have been anti-dilutive (in thousands):



	Three Months Ended
	March 31,
	2015	2014
Stock options	2,721	3,188
Restricted stock units	105	282
Performance based restricted stock units^(C)	1,450	674
Total equity award shares excluded	4,276	4,144

(C)

2014 performance based restricted stock units are presented based on attainment of 100% of the performance goals being met. The maximum multiplier for a given semi-annual performance period was 2.75x the original grant and overall achievement was limited to a maximum of 2.5x of the target award over the entire performance period (Note 11 —Stock-based Compensation). Based on this formula, the maximum number of shares that could have been earned was 1.8 million for the three months ended March 31, 2014.

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

A reconciliation of the numerator and the denominator used to calculate basic and diluted net loss per share is as follows (in thousands, except per share amounts):



	Three Months Ended
	March 31,
	2015			2014
Numerator — Basic
Net loss	$	(7,053	)	$	(10,434	)
Numerator — Diluted
Net loss	$	(7,053	)	$	(10,434	)
Interest on convertible notes, net of tax benefit ^(B)	—			—
Net loss, diluted	$	(7,053	)	$	(10,434	)
Denominator — Basic
Weighted average shares used to calculate net loss per share, basic	36,649			29,864
Denominator — Diluted
Weighted average shares used to calculate net loss per share, basic	36,649			29,864
Effect of convertible notes ^(A)	—			—
Effect of dilutive restricted stock units ^(B)	—			—
Effect of dilutive stock options ^(B)	—			—
Weighted average shares used to calculate net loss per share, diluted	36,649			29,864
Net loss per share
Basic	$	(0.19	)	$	(0.35	)
Diluted	$	(0.19	)	$	(0.35	)