Debt Of The Operating Partnership (Summary Of Outstanding Indebtedness Of The Operating Partnership - Exchangeable Senior Debentures) (Details) (USD $) In Thousands, unless otherwise specified					3 Months Ended					3 Months Ended
	Mar. 31, 2014	Dec. 31, 2013	Mar. 31, 2014 Digital Realty Trust, L.P. [Member]	Dec. 31, 2013 Digital Realty Trust, L.P. [Member]	Mar. 31, 2014 5.50% Exchangeable Senior Debentures Due 2029 [Member] Digital Realty Trust, L.P. [Member]	Apr. 20, 2009 5.50% Exchangeable Senior Debentures Due 2029 [Member] Digital Realty Trust, L.P. [Member]	Mar. 31, 2014 Exchangeable Senior Debentures [Member] Digital Realty Trust, L.P. [Member]	Dec. 31, 2013 Exchangeable Senior Debentures [Member] Digital Realty Trust, L.P. [Member]	Mar. 31, 2014 Exchangeable Senior Debentures [Member] 5.50% Exchangeable Senior Debentures Due 2029 [Member]	Mar. 31, 2014 Exchangeable Senior Debentures [Member] 5.50% Exchangeable Senior Debentures Due 2029 [Member] Digital Realty Trust, L.P. [Member]		Dec. 31, 2013 Exchangeable Senior Debentures [Member] 5.50% Exchangeable Senior Debentures Due 2029 [Member] Digital Realty Trust, L.P. [Member]
Debt Instrument [Line Items]
Interest Rate						5.50%			5.50%	5.50%
Maturity Date					Apr. 15, 2029					Apr. 15, 2029	[1]
Exchangeable senior debentures net of discount	$ 266,400	$ 266,400	$ 266,400	$ 266,400			$ 266,400	$ 266,400		$ 266,400		$ 266,400

[1] The 2029 Debentures were redeemed in April 2014.