Income per Unit (Tables)

3 Months Ended

Mar. 31, 2016

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 March 31,
	2016		2015
Net income available to common stockholders	$	39,125	$	101,728
Weighted average shares outstanding—basic	146,565,564		135,704,525
Potentially dilutive common shares:
Stock options	11,286		33,839
Unvested incentive units	122,601		147,874
Market performance-based awards	733,743		242,562
Weighted average shares outstanding—diluted	147,433,194		136,128,800
Income per share:
Basic	$	0.27	$	0.75
Diluted	$	0.27	$	0.75

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 March 31,
	2016	2015
Weighted average of Operating Partnership common units not owned by Digital Realty Trust, Inc.	2,482,234	2,702,468
Potentially dilutive Series E Cumulative Redeemable Preferred Stock	3,345,087	4,392,889
Potentially dilutive Series F Cumulative Redeemable Preferred Stock	2,121,447	2,785,960
Potentially dilutive Series G Cumulative Redeemable Preferred Stock	2,900,732	3,809,345
Potentially dilutive Series H Cumulative Redeemable Preferred Stock	4,250,720	5,582,197
Potentially dilutive Series I Cumulative Redeemable Preferred Stock	2,904,126	—
	18,004,346	19,272,859

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 March 31,
	2016		2015
Net income available to common unitholders	$	39,788	$	103,754
Weighted average units outstanding—basic	149,047,798		138,406,993
Potentially dilutive common units:
Stock options	11,286		33,839
Unvested incentive units	122,601		147,874
Market performance-based awards	733,743		242,562
Weighted average units outstanding—diluted	149,915,428		138,831,268
Income per unit:
Basic	$	0.27	$	0.75
Diluted	$	0.27	$	0.75

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 March 31,
	2016	2015
Potentially dilutive Series E Cumulative Redeemable Preferred Units	3,345,087	4,392,889
Potentially dilutive Series F Cumulative Redeemable Preferred Units	2,121,447	2,785,960
Potentially dilutive Series G Cumulative Redeemable Preferred Units	2,900,732	3,809,345
Potentially dilutive Series H Cumulative Redeemable Preferred Units	4,250,720	5,582,197
Potentially dilutive Series I Cumulative Redeemable Preferred Units	2,904,126	—
	15,522,112	16,570,391