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Income per Share (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

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,
	2018				2017
Net income available to common stockholders	$	86,298			$	66,145
Weighted average shares outstanding—basic	205,714,173				159,297,027
Potentially dilutive common shares:
Stock options	—				4
Unvested incentive units	302,016				237,336
Forward equity offering	—				283,388
Market performance-based awards	491,287				603,900
Weighted average shares outstanding—diluted	206,507,476				160,421,655
Income per share:
Basic	$	0.42			$	0.42
Diluted	$	0.42			$	0.41

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,
	2018			2017
Weighted average of Operating Partnership common units not owned by Digital Realty Trust, Inc.	8,295,287			2,177,874
Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Stock	1,967,430			—
Potentially dilutive Series F Cumulative Redeemable Preferred Stock	—			1,783,083
Potentially dilutive Series G Cumulative Redeemable Preferred Stock	2,439,505			2,438,074
Potentially dilutive Series H Cumulative Redeemable Preferred Stock	3,574,840			3,572,744
Potentially dilutive Series I Cumulative Redeemable Preferred Stock	2,442,359			2,440,928
Potentially dilutive Series J Cumulative Redeemable Preferred Stock	1,948,598			—
Total	20,668,019			12,412,703

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- References

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- Definition

Tabular disclosure of securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) in the future that were not included in the computation of diluted EPS because to do so would increase EPS amounts or decrease loss per share amounts for the period presented, by antidilutive securities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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