Earnings Per Common Share (Tables)

9 Months Ended

Sep. 30, 2016

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 September 30,		For the Nine Months Ended September 30,
	2016	2015	2016	2015
	Equivalent Shares (if converted)	Equivalent Shares (if converted)	Equivalent Shares (if converted)	Equivalent Shares (if converted)
Series B Units	496,412	572,121	480,419	607,806
Series C Units	351,132	404,684	339,820	429,926
Series D Units	—	187,189	417,420	198,865
	847,544	1,163,994	1,237,659	1,236,597

Schedule of Computation of Earnings Per Common Share

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

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2016			2015			2016			2015
Net income attributable to common stockholders	$	118,088		$	71,718		$	283,724		$	180,799
Earnings and dividends allocated to participating securities	(248		)	(173		)	(616		)	(432		)
Earnings for basic computations	117,840			71,545			283,108			180,367
Earnings and dividends allocated to participating securities	—			173			—			—
Income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units) and Operating Partnership	7,776			5,151			17,926			13,062
Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units)	(1,271		)	(1,272		)	(3,814		)	(3,817		)
Net income for diluted computations	$	124,345		$	75,597		$	297,220		$	189,612
Weighted average common shares outstanding:
Average number of common shares outstanding - basic	125,752,291			122,644,837			125,244,761			118,564,872
OP Units	5,534,350			5,934,539			5,557,723			5,320,130
Series A Units	875,480			875,480			875,480			875,480
Series D Units	814,435			—			—			—
Unvested restricted stock awards included for treasury stock method	—			304,610			—			—
Shares related to exchangeable senior notes and dilutive stock options	786,916			638,645			798,727			645,831
Average number of common shares outstanding - diluted	133,763,472			130,398,111			132,476,691			125,406,313
Earnings per common share
Basic	$	0.94		$	0.58		$	2.26		$	1.52
Diluted	$	0.93		$	0.58		$	2.24		$	1.51