Debt Of The Operating Partnership (5.50% Exchangeable Senior Notes Due 2029) (Narrative) (Details) (5.50% Exchangeable Senior Debentures Due 2029 [Member], Digital Realty Trust, L.P. [Member], USD $)	3 Months Ended
	Mar. 31, 2014	Apr. 20, 2009
5.50% Exchangeable Senior Debentures Due 2029 [Member] | Digital Realty Trust, L.P. [Member]
Debt Instrument [Line Items]
Issuance date	Apr. 20, 2009
Senior face amount		$ 266,400,000
Maturity date	Apr. 15, 2029
Interest rate		5.50%
Debt issuance cost	7,800,000
Amortization period	5 years
Exchangeable debenture exchange rate, shares	0.0232558
Reference dividend rate, per share	$ 0.33
Exchangeable debenture exchange rate, shares, adjusted	0.0255490
Issuance of restricted shares in exchange for principal amount	6,734,938
Amount of principal exchanged for shares	261,200,000
Amount of principal redeemed when holders did not exercise their option	$ 5,200,000
Percentage of principal amount redeemed	100.00%