Debt Of The Operating Partnership (Unsecured Term Loan) (Narrative) (Details) (Unsecured Term Loan [Member], Digital Realty Trust, L.P. [Member], USD $)	12 Months Ended
	Dec. 31, 2013 item		Dec. 31, 2012		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%		1.45%
Balance/Principal Outstanding	1,020,984,000	[1]	757,839,000	[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 December 31, 2013 and December 31, 2012 are as follows (balances, in thousands): Denomination of Draw Balance as of December 31, 2013 Weighted-average interest rate Balance as of December 31, 2012 Weighted-average interest rate U.S. dollar ($) $ 410,905 1.37% (b) $ 410,905 1.66% (d) Singapore dollar (SGD) 180,918 (a) 1.40% (b) 155,098 (c) 1.77% (d) British pound sterling (£) 200,216 (a) 1.72% 91,191 (c) 1.94% Euro (€) 136,743 (a) 1.43% 65,305 (c) 1.56% Australian dollar (AUD) 92,202 (a) 3.78% 35,340 (c) 4.57% Total $ 1,020,984 1.67% (b) $ 757,839 1.84% (d) (a) 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. (b) 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. (c) Based on exchange rates of $0.82 to 1.00 SGD, $1.63 to £1.00, $1.32 to €1.00, $1.04 to 1.00 AUD, respectively, as of December 31, 2012. (d) As of December 31, 2012, the weighted-average interest rate reflecting interest rate swaps was 2.17% (U.S. dollar), 2.38% (Singapore dollar) and 2.24% (Total). See Note [14] for further discussion on interest rate swaps.