Earnings Per Share

We have outstanding stock options, unvested restricted common shares, Series A Preferred Stock, and Series A-4 Preferred Stock, and our Operating Partnership has: outstanding common OP units; Series A-1 preferred OP units; Series A-3 preferred OP units; Series A-4 preferred OP units; Series C preferred OP units; and Aspen preferred OP Units, which, if converted or exercised, may impact dilution.

Computations of basic and diluted earnings / (loss) per share were as follows (in thousands, except per share data):



	Three Months Ended June 30,						Six Months Ended June 30,
Numerator	2017			2016			2017			2016
Net income / (loss) attributable to common stockholders	$	12,364		$	(7,803	)	$	33,468		$	72
Allocation to restricted stock awards	(9		)	242			(267		)	179
Basic earnings: Net income / (loss) attributable to common stockholders after allocation	12,355			(7,561		)	33,201			251
Allocation to restricted stock awards	9			(242		)	267			(179		)
Diluted earnings: Net income / (loss) attributable to common stockholders after allocation	$	12,364		$	(7,803	)	$	33,468		$	72

Denominator
Weighted average common shares outstanding	74,678			64,757			73,677			61,247
Add: dilutive stock options	2			—			2			9
Add: dilutive restricted stock	474			—			593			417
Diluted weighted average common shares and securities	75,154			64,757			74,272			61,673
Earnings / (loss) per share available to common stockholders after allocation:
Basic	$	0.16		$	(0.12	)	$	0.45		$	0.00
Diluted	$	0.16		$	(0.12	)	$	0.45		$	0.00

We have excluded certain securities from the computation of diluted earnings per share because the inclusion of these securities would have been anti-dilutive for the periods presented. The following table presents the outstanding securities that were excluded from the computation of diluted earnings per share as of June 30, 2017 and 2016 (in thousands):



	As of June 30,
	2017	2016
Common OP units	2,770	2,863
Series A-1 preferred OP units	361	378
Series A-3 preferred OP units	40	40
Series A-4 preferred OP units	429	748
Series A-4 preferred stock	1,085	1,682
Series C preferred OP units	328	340
Aspen preferred OP units	1,284	1,284
Total securities	6,297	7,335