Income per Share (Tables)

6 Months Ended

Jun. 30, 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 June 30,				Six Months Ended June 30,
	2018		2017		2018		2017
Net income available to common stockholders	$	65,134	$	57,837	$	151,432	$	123,982
Weighted average shares outstanding—basic	205,956,005		160,832,889		205,835,757		160,069,201
Potentially dilutive common shares:
Unvested incentive units	151,265		161,553		150,864		151,807
Forward equity offering	—		216,526		—		251,119
Market performance-based awards	455,809		570,899		473,549		587,400
Weighted average shares outstanding—diluted	206,563,079		161,781,867		206,460,170		161,059,527
Income per share:
Basic	$	0.32	$	0.36	$	0.74	$	0.77
Diluted	$	0.32	$	0.36	$	0.73	$	0.77

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,
	2018	2017	2018	2017
Weighted average of Operating Partnership common units not owned by Digital Realty Trust, Inc.	8,332,194	2,244,710	8,313,432	2,211,476
Potentially dilutive Series C Cumulative Redeemable Perpetual Preferred Stock	1,898,314	—	1,932,872	—
Potentially dilutive Series F Cumulative Redeemable Preferred Stock	—	70,119	—	926,601
Potentially dilutive Series G Cumulative Redeemable Preferred Stock	2,353,805	2,157,221	2,396,655	2,297,648
Potentially dilutive Series H Cumulative Redeemable Preferred Stock	3,449,255	3,161,182	3,512,048	3,366,963
Potentially dilutive Series I Cumulative Redeemable Preferred Stock	2,356,559	2,159,745	2,399,459	2,300,337
Potentially dilutive Series J Cumulative Redeemable Preferred Stock	1,880,144	—	1,914,371	—
Total	20,270,271	9,792,977	20,468,837	11,103,025