13.

Earnings per common share:

The following table reconciles the numerators and denominators of the basic and diluted earnings per common share computations (in thousands, except share and per share data).


	March 31,			March 31,
	2018			2017
Basic:
Net (loss) income attributable to common stockholders	$	(10,709	)	$	48,325
Weighted average common shares outstanding		58,062,997			54,519,574

Basic (loss) earnings per common share	$	(0.18	)	$	0.89

Diluted:
Effect of dilutive securities:
Net (loss) income attributable to common stockholders		(10,709	)		48,325
Adjustment to income for dilutive options and warrants		—			—

		(10,709	)		48,325
Weighted average common shares outstanding		58,062,997			54,519,574
Effect of dilutive options and warrants		—			912,054

Diluted weighted average common shares outstanding		58,062,997			55,431,628

Diluted (loss) earnings per common share	$	(0.18	)	$	0.87

Basic earnings per common share is calculated using the weighted average shares of Common Stock outstanding during the period. Common equivalent shares from stock options, RSUs, warrants and convertible preferred stock using the treasury stock method, are also included in the diluted per share calculations unless the effect of inclusion would be antidilutive. During the three months ended March 31, 2018 and 2017, outstanding stock options, RSUs, warrants and convertible preferred stock of 10,243,260 and 10,124,619, respectively, were not included in the computation of diluted earnings per common share, because to do so would have had an antidilutive effect because the outstanding exercise prices were greater than the average market price of the common shares during the relevant periods.