Debt Of The Operating Partnership (Unsecured Term Loan) (Narrative) (Details) (Unsecured Term Loan [Member], Digital Realty Trust, L.P. [Member], USD $)	3 Months Ended
	Mar. 31, 2014 item		Dec. 31, 2013		Aug. 15, 2013	Aug. 14, 2013
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity					$ 1,000,000,000	$ 750,000,000
Maturity date	Apr. 16, 2017
Number of extension options	2
Revolving credit facility commitments extension	6 months
Basis spread on variable rate	1.20%
Balance/Principal Outstanding	1,026,891,000	[1]	1,020,984,000	[1]
Capitalized financing costs	8,400,000
Accordian Feature [Member]
Debt Instrument [Line Items]
Credit facility, maximum borrowing capacity					$ 1,100,000,000

[1] Balances as of March 31, 2014 and December 31, 2013 are as follows (balances, in thousands): Denomination of Draw Balance as of March 31, 2014 Weighted-average interest rate Balance as of December 31, 2013 Weighted-average interest rate U.S. dollar ($) $ 410,905 1.36% (b) $ 410,905 1.37% (d) Singapore dollar (SGD) 181,710 (a) 1.42% 180,918 (c) 1.40% (d) British pound sterling (£) 201,485 (a) 1.72% 200,216 (c) 1.72% Euro (€) 137,001 (a) 1.43% 136,743 (c) 1.43% Australian dollar (AUD) 95,790 (a) 3.82% 92,202 (c) 3.78% Total $ 1,026,891 1.68% (b) $ 1,020,984 1.67% (d) (a) Based on exchange rates of $0.80 to 1.00 SGD, $1.67 to £1.00, $1.38 to €1.00, $0.93 to 1.00 AUD, respectively, as of March 31, 2014. (b) As of March 31, 2014, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.01% (Total). See Note 14 for further discussion on interest rate swaps. (c) Based on exchange rates of $0.79 to 1.00 SGD, $1.66 to £1.00, $1.37 to €1.00, $0.89 to 1.00 AUD, respectively, as of December 31, 2013. (d) As of December 31, 2013, the weighted-average interest rate reflecting interest rate swaps was 1.92% (U.S. dollar), 2.00% (Singapore dollar) and 2.00% (Total). See Note 14 for further discussion on interest rate swaps.