Net Income (Loss) Per Share (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Numerators and Denominators of Basic and Diluted Net Income (Loss) Per Share Computations

The following table presents the calculation of basic and diluted net income (loss) per share (in thousands, except per share amounts):

	December 31,
	2015			2014			2013
Numerator:
Income (loss) from continuing operations	$	(15,661	)	$	(46,248	)	$	21,589
Income from discontinued operations	—			—			15,438
Net income (loss)	$	(15,661	)	$	(46,248	)	$	37,027
Denominator:
Weighted average shares outstanding:
Basic	87,514			92,508			106,529
Effect of dilutive securities from stock options, restricted stock units and ESPP	—			—			1,279
Diluted	87,514			92,508			107,808
Basic net income (loss) per share from:
Continuing operations	$	(0.18	)	$	(0.50	)	$	0.20
Discontinued operations	$	—		$	—		$	0.14
Net income (loss)	$	(0.18	)	$	(0.50	)	$	0.35
Diluted net income (loss) per share from:
Continuing operations	$	(0.18	)	$	(0.50	)	$	0.20
Discontinued operations	$	—		$	—		$	0.14
Net income (loss)	$	(0.18	)	$	(0.50	)	$	0.34

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following table presents the potential weighted common shares outstanding that were excluded from the computation of basic and diluted net loss per share calculations (in thousands):

	December 31,
	2015	2014	2013
Stock options	6,460	7,115	6,454
Restricted stock units	2,178	2,066	437
Employee stock purchase plan	518	346	175
Total	9,156	9,527	7,066