Income per Share (Tables)

6 Months Ended

Jun. 30, 2017

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,
	2017		2016		2017		2016
Net income available to common stockholders	$	57,837	$	27,951	$	123,982	$	67,076
Weighted average shares outstanding—basic	160,832,889		146,824,268		160,069,201		146,694,916
Potentially dilutive common shares:
Stock options	—		11,588		—		10,887
Unvested incentive units	161,553		77,946		151,807		70,664
Forward equity offering	216,526		347,277		251,119		—
Market performance-based awards	570,899		547,189		587,400		640,467
Weighted average shares outstanding—diluted	161,781,867		147,808,268		161,059,527		147,416,934
Income per share:
Basic	$	0.36	$	0.19	$	0.77	$	0.46
Diluted	$	0.36	$	0.19	$	0.77	$	0.46

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,
	2017	2016	2017	2016
Weighted average of Operating Partnership common units not owned by Digital Realty Trust, Inc.	2,244,710	2,402,446	2,211,476	2,442,342
Potentially dilutive Series E Cumulative Redeemable Preferred Stock	—	2,807,321	—	3,076,204
Potentially dilutive Series F Cumulative Redeemable Preferred Stock	70,119	1,780,397	926,601	1,950,922
Potentially dilutive Series G Cumulative Redeemable Preferred Stock	2,157,221	2,434,401	2,297,648	2,667,567
Potentially dilutive Series H Cumulative Redeemable Preferred Stock	3,161,182	3,567,361	3,366,963	3,909,041
Potentially dilutive Series I Cumulative Redeemable Preferred Stock	2,159,745	2,437,250	2,300,337	2,670,688
Shares subject to forward equity offering	—	—	—	14,375,000
Total	9,792,977	15,429,176	11,103,025	31,091,764