The following table summarizes the components used in the calculation of basic and diluted earnings per share (EPS):



	Three Months Ended June 30,								Six Months Ended June 30,
	2018				2017				2018				2017
Numerator:
Income (loss) from continuing operations	$	10,882			$	(1,865	)		$	18,143			$	(52,129	)
Gain on sales of investment properties	—				116,628				34,519				157,792
Preferred stock dividends	—				(2,363		)		—				(4,725		)
Net income attributable to common shareholders	10,882				112,400				52,662				100,938
Earnings allocated to unvested restricted shares	(90		)		(88		)		(172		)		(178		)
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	10,792			$	112,312			$	52,490			$	100,760

Denominator:
Denominator for earnings per common share – basic:
Weighted average number of common shares outstanding	218,982			(a)	234,243			(b)	218,915			(a)	235,269			(b)
Effect of dilutive securities:
Stock options	—			(c)	1			(c)	—			(c)	1			(c)
RSUs	428			(d)	574			(e)	491			(d)	572			(e)
Denominator for earnings per common share – diluted:
Weighted average number of common and common equivalent shares outstanding	219,410				234,818				219,406				235,842


(a)	Excludes 521 shares of unvested restricted common stock as of June 30, 2018, which equate to 529 and 551 shares, respectively, on a weighted average basis for the three and six months ended June 30, 2018. These shares will continue to be excluded from the computation of basic EPS until contingencies are resolved and the shares are released.


(b)	Excludes 556 shares of unvested restricted common stock as of June 30, 2017, which equate to 536 and 550 shares, respectively, on a weighted average basis for the three and six months ended June 30, 2017. These shares were excluded from the computation of basic EPS as the contingencies remained and the shares had not been released as of the end of the reporting period.

(c)

There were outstanding options to purchase 38 and 41 shares of common stock as of June 30, 2018 and 2017, respectively, at a weighted average exercise price of $18.85 and $19.25, respectively. Of these totals, outstanding options to purchase 32 and 35 shares of common stock as of June 30, 2018 and 2017, respectively, at a weighted average exercise price of $20.19 and $20.55, respectively, have been excluded from the common shares used in calculating diluted EPS as including them would be anti-dilutive.


(d)	As of June 30, 2018, there were 649 RSUs eligible for future conversion upon completion of the performance periods (see Note 5 to the condensed consolidated financial statements), which equate to 649 and 667 RSUs, respectively, on a weighted average basis for the three and six months ended June 30, 2018. These contingently issuable shares are a component of calculating diluted EPS.


(e)	As of June 30, 2017, there were 644 RSUs eligible for future conversion upon completion of the performance periods, which equate to 644 and 641 RSUs, respectively, on a weighted average basis for the three and six months ended June 30, 2017. These contingently issuable shares are a component of calculating diluted EPS.