Loss Per Share (Tables)

9 Months Ended

Sep. 30, 2019

Earnings Per Share [Abstract]

Computation of Basic and Diluted Loss per Share under Two-Class Method

The following table sets forth the computation of basic and diluted loss per share under the two-class method:

	Three months ended						Nine months ended
	September 30,						September 30,
	2019			2018			2019			2018
Numerator for basic and diluted loss per share:
Net loss	$	(29,428	)	$	(16,736	)	$	(65,627	)	$	(53,821	)
Effect of reallocating undistributed earnings    of participating securities		—			—			—			—
Net loss available under the two-class method	$	(29,428	)	$	(16,736	)	$	(65,627	)	$	(53,821	)
Denominator:
Denominator for basic loss per share--weighted-average    shares		28,642,839			27,169,301			28,245,170			26,964,330
Effect of dilutive potential common shares		—			—			—			—
Denominator for diluted loss per share--adjusted    weighted-average shares		28,642,839			27,169,301			28,245,170			26,964,330
Basic loss per share	$	(1.03	)	$	(0.62	)	$	(2.32	)	$	(2.00	)
Diluted loss per share	$	(1.03	)	$	(0.62	)	$	(2.32	)	$	(2.00	)