Capital And Accumulated Other Comprehensive Income (Loss) (Schedule Of Distributions) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		12 Months Ended	3 Months Ended												12 Months Ended	3 Months Ended
	Mar. 31, 2014 Series E Cumulative Convertible Preferred Stock/Units [Member]		Dec. 31, 2013 Series E Cumulative Convertible Preferred Stock/Units [Member]	Mar. 31, 2014 Series E Cumulative Convertible Preferred Stock/Units [Member] Digital Realty Trust, L.P. [Member]		Mar. 31, 2014 Series F Cumulative Convertible Preferred Stock/Units [Member]		Mar. 31, 2014 Series F Cumulative Convertible Preferred Stock/Units [Member] Digital Realty Trust, L.P. [Member]		Mar. 31, 2014 Series G Cumulative Convertible Preferred Stock/Units [Member]		Mar. 31, 2014 Series G Cumulative Convertible Preferred Stock/Units [Member] Digital Realty Trust, L.P. [Member]		Mar. 31, 2014 Common Units [Member] Digital Realty Trust, L.P. [Member]		Dec. 31, 2011 Common Units [Member] Digital Realty Trust, L.P. [Member]	Mar. 31, 2014 Installment 1 FY2014 [Member]	Mar. 31, 2014 Installment 1 FY2014 [Member] Digital Realty Trust, L.P. [Member]	Mar. 31, 2014 Installment 1 FY2014 [Member] Series E Cumulative Convertible Preferred Stock/Units [Member]		Mar. 31, 2014 Installment 1 FY2014 [Member] Series E Cumulative Convertible Preferred Stock/Units [Member] Digital Realty Trust, L.P. [Member]		Mar. 31, 2014 Installment 1 FY2014 [Member] Series F Cumulative Convertible Preferred Stock/Units [Member]		Mar. 31, 2014 Installment 1 FY2014 [Member] Series F Cumulative Convertible Preferred Stock/Units [Member] Digital Realty Trust, L.P. [Member]		Mar. 31, 2014 Installment 1 FY2014 [Member] Series G Cumulative Convertible Preferred Stock/Units [Member]		Mar. 31, 2014 Installment 1 FY2014 [Member] Series G Cumulative Convertible Preferred Stock/Units [Member] Digital Realty Trust, L.P. [Member]		Mar. 31, 2014 Installment 1 FY2014 [Member] Common Units [Member] Digital Realty Trust, L.P. [Member]
Dividends Payable [Line Items]
Date dividend/distribution declared																	Feb. 11, 2014	Feb. 11, 2014
Dividend/Distribution payable date																	Mar. 31, 2014	Mar. 31, 2014
Dividends/Distributions, preferred stock/units	$ 5,031	[1]		$ 5,031	[2]	$ 3,023	[3]	$ 3,023	[4]	$ 3,672	[5]	$ 3,672	[6]						$ 5,031	[1]	$ 5,031	[2]	$ 3,023	[3]	$ 3,023	[4]	$ 3,672	[5]	$ 3,672	[6]
Dividends/Distributions, common stock/units														$ 109,378	[7]																$ 109,378	[7]
Preferred stock dividend per share amount	$ 1.750		$ 1.750	$ 1.750		$ 1.656		$ 1.656		$ 1.469		$ 1.469
Common stock dividend per share amount																$ 3.320

[1] $1.750 annual rate of dividend per share.

[2] $1.750 annual rate of distribution per unit.

[3] $1.656 annual rate of dividend per share.

[4] $1.656 annual rate of distribution per unit.

[5] $1.469 annual rate of dividend per share.

[6] $1.469 annual rate of distribution per unit.

[7] $3.320 annual rate of distribution per unit.