Loss Per Share

12 Months Ended

Dec. 31, 2018

Earnings Per Share [Abstract]

Loss Per Share

Loss Per Share

The following table presents the calculations of loss per share:

	Years Ended December 31,
	2018		2017		2016
Historical net loss per share
Numerator
Net loss attributable to common stockholders	$	(53,595)	$	(71,951)	$	(85,155)
Denominator
Basic and diluted weighted-average shares outstanding	37,191,262		31,304,309		28,979,327
Basic and diluted loss per share	$	(1.44)	$	(2.30)	$	(2.94)

All common stock equivalents are excluded from the computation of diluted loss per share during periods in which losses are reported since the result would be anti-dilutive. For December 31, 2018, anti-dilutive stock options and restricted stock awards excluded from our calculation totaled 7,979,644 and 68,585, respectively. For December 31, 2017, anti-dilutive stock options and restricted stock awards excluded from our calculation totaled 7,206,884 and 168,221.