NET LOSS PER SHARE

3 Months Ended

Mar. 31, 2016

Earnings Per Share [Abstract]

NET LOSS PER SHARE

9. NET LOSS PER SHARE

We compute basic net loss per share by dividing net loss attributable to our common stockholders by the weighted average number of shares of common stock outstanding during the period. We exclude all outstanding options and unvested restricted stock as such securities are anti-dilutive for all periods presented.

Basic and diluted net loss per share is calculated as follows (in thousands, except per share amounts):

	Three Months Ended  March 31,
	2016			2015
Net loss attributable to common stock	$	(9,644	)	$	(10,442	)
Weighted average shares outstanding, basic and diluted		51,774			51,336
Net loss per share, basic and diluted	$	(0.19	)	$	(0.20	)
Anti-dilutive securities excluded from diluted net loss per share calculation for stock-based compensation plans		7,598			7,296