Income per Unit (Tables)

6 Months Ended

Jun. 30, 2020

Class of Stock [Line Items]

Summary of Basic and Diluted Earnings Per Share

The following is a summary of basic and diluted income per share (in thousands, except share and per share amounts):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Net income available to common stockholders	$	53,676	$	31,738	$	256,535	$	127,607
Weighted average shares outstanding—basic		267,569,823		208,284,407		244,866,574		208,048,207
Potentially dilutive common shares:
Unvested incentive units		110,178		152,240		81,319		135,016
Unvested restricted stock		312,634		—		261,758		—
Forward equity offering		2,246,171		825,098		1,845,832		537,980
Market performance-based awards		505,602		173,827		520,531		173,091
Weighted average shares outstanding—diluted		270,744,408		209,435,572		247,576,014		208,894,294
Income per share:
Basic	$	0.20	$	0.15	$	1.05	$	0.61
Diluted	$	0.20	$	0.15	$	1.04	$	0.61

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

We have excluded the following potentially dilutive securities in the calculations above as they would be antidilutive or not dilutive:

	Three Months Ended June 30,		Six Months Ended June 30,
	2020	2019	2020	2019
Weighted average of Operating Partnership common units not owned by Digital Realty Trust, Inc.	7,974,701	9,061,745	8,128,459	9,145,364
Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Stock	1,441,895	1,682,746	1,518,997	1,710,764
Potentially dilutive Series G Cumulative Redeemable Preferred Stock	1,787,870	2,086,512	1,883,473	2,121,252
Potentially dilutive Series H Cumulative Redeemable Preferred Stock	—	—	—	1,579,691
Potentially dilutive Series I Cumulative Redeemable Preferred Stock	1,789,962	2,088,954	1,885,677	2,123,735
Potentially dilutive Series J Cumulative Redeemable Preferred Stock	1,428,093	1,666,639	1,504,458	1,694,389
Potentially dilutive Series K Cumulative Redeemable Preferred Stock	1,501,718	1,752,562	1,582,019	1,051,537
Potentially dilutive Series L Cumulative Redeemable Preferred Stock	2,463,157	—	2,593,120	—
Total	18,387,396	18,339,158	19,096,203	19,426,732

Digital Realty Trust, L.P.

Class of Stock [Line Items]

Summary of Basic and Diluted Earnings Per Share

The following is a summary of basic and diluted income per unit (in thousands, except unit and per unit amounts):

	Three Months Ended June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
Net income available to common unitholders	$	55,076	$	33,138	$	265,735	$	133,307
Weighted average units outstanding—basic		275,544,524		217,346,153		252,995,033		217,193,571
Potentially dilutive common units:
Unvested incentive units		110,178		152,240		81,319		135,016
Unvested restricted units		312,634		—		261,758		—
Forward equity offering		2,246,171		825,098		1,845,832		537,980
Market performance-based awards		505,602		173,827		520,531		173,091
Weighted average units outstanding—diluted		278,719,109		218,497,318		255,704,473		218,039,658
Income per unit:
Basic	$	0.20	$	0.15	$	1.05	$	0.61
Diluted	$	0.20	$	0.15	$	1.04	$	0.61

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

We have excluded the following potentially dilutive securities in the calculations above as they would be antidilutive or not dilutive:

	Three Months Ended June 30,		Six Months Ended June 30,
	2020	2019	2020	2019
Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Units	1,441,895	1,682,746	1,518,997	1,710,764
Potentially dilutive Series G Cumulative Redeemable Preferred Units	1,787,870	2,086,512	1,883,473	2,121,252
Potentially dilutive Series H Cumulative Redeemable Preferred Units	—	—	—	1,579,691
Potentially dilutive Series I Cumulative Redeemable Preferred Units	1,789,962	2,088,954	1,885,677	2,123,735
Potentially dilutive Series J Cumulative Redeemable Preferred Units	1,428,093	1,666,639	1,504,458	1,694,389
Potentially dilutive Series K Cumulative Redeemable Preferred Units	1,501,718	1,752,562	1,582,019	1,051,537
Potentially dilutive Series L Cumulative Redeemable Preferred Units	2,463,157	—	2,593,120	—
Total	10,412,695	9,277,413	10,967,744	10,281,368