Earnings Per Common Share (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Schedule of Antidilutive Shares Excluded from Computation of Earnings Per Share

The following table presents the number of Preferred Operating Partnership units, and the potential common shares, that were excluded from the computation of earnings per share as their effect would have been anti-dilutive.

	For the Three Months Ended June 30,		For the Six Months Ended June 30,
	2019	2018	2019	2018
	Equivalent Shares (if converted)	Equivalent Shares (if converted)	Equivalent Shares (if converted)	Equivalent Shares (if converted)
Series B Units	398,840	450,077	416,398	472,350
Series C Units(1)	—	318,357	—	334,112
Series D Units	1,109,048	988,862	1,096,259	1,037,798
	1,507,888	1,757,296	1,512,657	1,844,260

(1)    The remainder of the Series C Units were converted to OP Units on April 25, 2019.

Schedule of Computation of Earnings Per Common Share

The computation of earnings per common share is as follows for the periods presented:

	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2019			2018			2019			2018
Net income attributable to common stockholders	$	104,828		$	95,153		$	199,598		$	183,409
Earnings and dividends allocated to participating securities	(176		)	(193		)	(343		)	(371		)
Earnings for basic computations	104,652			94,960			199,255			183,038
Earnings and dividends allocated to participating securities	176			—			—			371
Income allocated to noncontrolling interest - Preferred Operating Partnership Units and Operating Partnership Units	6,010			5,271			11,439			10,211
Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units)	(572		)	(572		)	(1,144		)	(1,144		)
Net income for diluted computations	$	110,266		$	99,659		$	209,550		$	192,476
Weighted average common shares outstanding:
Average number of common shares outstanding - basic	127,585,436			125,874,130			127,349,299			125,823,581
OP Units	6,085,976			5,651,878			6,023,822			5,657,592
Series A Units	875,480			875,480			875,480			875,480
Unvested restricted stock awards included for treasury stock method	218,686			—			—			256,733
Shares related to exchangeable senior notes and dilutive stock options	889,183			371,284			917,855			379,348
Average number of common shares outstanding - diluted	135,654,761			132,772,772			135,166,456			132,992,734
Earnings per common share
Basic	$	0.82		$	0.75		$	1.56		$	1.45
Diluted	$	0.81		$	0.75		$	1.55		$	1.45