Income Per Unit (Tables)

12 Months Ended

Dec. 31, 2014

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):

	Year Ended December 31,
	2014		2013		2012
Net income available to common stockholders	$	132,718	$	271,583	$	171,662
Weighted average shares outstanding—basic	133,369,047		127,941,134		115,717,667
Potentially dilutive common shares:
Stock options	30,434		61,375		72,818
Unvested incentive units	90,449		125,132		216,092
2014 market performance-based awards	147,305		—		—
Weighted average shares outstanding—diluted	133,637,235		128,127,641		116,006,577
Income per share:
Basic	$	1.00	$	2.12	$	1.48
Diluted	$	0.99	$	2.12	$	1.48

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:

	Year Ended December 31,
	2014	2013	2012
Weighted average of Operating Partnership common units not owned by Digital Realty Trust, Inc.	2,753,614	2,521,400	4,143,713
Potentially dilutive 2029 Debentures	1,957,963	6,649,510	6,486,358
Potentially dilutive Series C Cumulative Convertible Preferred Stock	—	—	814,063
Potentially dilutive Series D Cumulative Convertible Preferred Stock	—	470,748	4,016,560
Potentially dilutive Series E Cumulative Redeemable Preferred Stock	4,956,175	5,176,886	4,122,752
Potentially dilutive Series F Cumulative Redeemable Preferred Stock	3,143,195	3,283,169	1,304,940
Potentially dilutive Series G Cumulative Redeemable Preferred Stock	4,297,805	3,898,376	—
Potentially dilutive Series H Cumulative Redeemable Preferred Stock	4,320,495	—	—
	21,429,247	22,000,089	20,888,386

Digital Realty Trust, L.P.

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):

	Year Ended December 31,
	2014		2013		2012
Net income available to common unitholders	$	135,485	$	276,949	$	177,819
Weighted average units outstanding—basic	136,122,661		130,462,534		119,861,380
Potentially dilutive common units:
Stock options	30,434		61,375		72,818
Unvested incentive units	90,449		125,132		216,092
2014 market performance-based awards	147,305		—		—
Weighted average units outstanding—diluted	136,390,849		130,649,041		120,150,290
Income per unit:
Basic	$	1.00	$	2.12	$	1.48
Diluted	$	0.99	$	2.12	$	1.48

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:

	Year Ended December 31,
	2014	2013	2012
Potentially dilutive 2029 Debentures	1,957,963	6,649,510	6,486,358
Potentially dilutive Series C Cumulative Convertible Preferred Units	—	—	814,063
Potentially dilutive Series D Cumulative Convertible Preferred Units	—	470,748	4,016,560
Potentially dilutive Series E Cumulative Redeemable Preferred Units	4,956,175	5,176,886	4,122,752
Potentially dilutive Series F Cumulative Redeemable Preferred Units	3,143,195	3,283,169	1,304,940
Potentially dilutive Series G Cumulative Redeemable Preferred Units	4,297,805	3,898,376	—
Potentially dilutive Series H Cumulative Redeemable Preferred Units	4,320,495	—	—
	18,675,633	19,478,689	16,744,673