Net Income (Loss) Per Share Attributable to Common Stockholders (Tables)

12 Months Ended

Dec. 31, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table presents the basic and diluted net income (loss) per share attributable to common stockholders:

	Year Ended
	December 31, 2015			December 31, 2014			December 31, 2013
	(In thousands, except per share data)
Basic EPS:
Net income (loss) attributable to common stockholders	$	422		$	(19,789	)	$	(13,493	)
Weighted-average common shares outstanding	42,067			29,921			11,540
Weighted-average unvested restricted shares	(1,677		)	(1,704		)	(52		)
Weighted-average escrow shares	(727		)	—			—
Weighted-average common shares outstanding used to compute net income (loss) per share attributable to common stockholders	39,663			28,217			11,488
Basic net income (loss) per share attributable to common stockholders	$	0.01		$	(0.70	)	$	(1.17	)
Diluted EPS:
Net income (loss) attributable to common stockholders	$	422		$	(19,789	)	$	(13,493	)
Weighted-average common shares used in basic EPS	39,663			28,217			11,488
Dilutive effect of weighted-average common stock options	2,510			—			—
Dilutive effect of weighted-average restricted stock awards	532			—			—
Dilutive effect of weighted-average restricted stock units	426			—			—
Dilutive effect of weighted-average ESPP	25			—			—
Dilutive effect of weighted-average escrow shares	591			—			—
Dilutive effect of weighted-average contingent shares	748			—			—
Weighted-average shares used to compute diluted net income (loss) per share attributable to common stockholders	44,495			28,217			11,488
Diluted net income (loss) per share attributable to common stockholders	$	0.01		$	(0.70	)	$	(1.17	)

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

The following shares have been excluded from the calculation of diluted net loss per share attributable to common stockholders for each period presented because they are anti-dilutive:

	December 31, 2015	December 31, 2014	December 31, 2013
	(in thousands)
Options to purchase common stock	—	8,113	8,360
Unvested restricted stock awards	—	1,750	—
Unvested restricted stock units	—	845	—
Shares held in escrow	—	125	—
Contingent shares	704	—	—
Conversion of convertible preferred stock	—	—	14,410
Conversion of preferred stock warrants	—	—	436
Total shares excluded from net income (loss) per share attributable to common stockholders	704	10,833	23,206