Debt Of The Operating Partnership (Unsecured Term Loan) (Narrative) (Details) (Unsecured Term Loan [Member], Digital Realty Trust, L.P. [Member], USD $)	1 Months Ended	6 Months Ended
	Jul. 31, 2012	Jun. 30, 2013		Dec. 31, 2012		Jun. 30, 2012
Unsecured Term Loan [Member] | Digital Realty Trust, L.P. [Member]
Debt of the Operating Partnership [Line Items]
Credit facility, initiation date		Apr. 17, 2012
Credit facility, maximum borrowing capacity		$ 750,000,000
Maturity date		Apr. 16, 2017
Senior unsecured debt basis spread on variable rate		1.45%
Delay draw available from date of close		250,000,000
Delay draw available from date of close, period		90 days
Additional amount borrowed during the month	225,000,000
Balance/Principal Outstanding		741,178,000	[1],[2]	757,839,000	[1]	525,000,000
Capitalized financing costs		$ 5,300,000

[1] Balances as of June 30, 2013 and December 31, 2012 are as follows (balances, in thousands): Denomination of Draw Balance as of June 30, 2013 Weighted-average interest rate Balance as of December 31, 2012 Weighted-average interest rate U.S. dollar ($) $ 410,905 1.64% $ 410,905 1.66% Singapore dollar (SGD) 149,460 (a) 1.70% 155,098 (b) 1.77% British pound sterling (£) 85,345 (a) 1.94% 91,191 (b) 1.94% Euro (€) 64,399 (a) 1.57% 65,305 (b) 1.56% Australian dollar (AUD) 31,069 (a) 4.27% 35,340 (b) 4.57% Total $ 741,178 1.79% $ 757,839 1.84% (a) Based on exchange rates of $0.79 to 1.00 SGD, $1.52 to £1.00, $1.30 to €1.00 and $0.91 to 1.00 AUD as of June 30, 2013. (b) Based on exchange rates of $0.82 to 1.00 SGD, $1.63 to £1.00, $1.32 to €1.00 and $1.04 to 1.00 AUD as of December 31, 2012.

[2] Balances as of June 30, 2013 and December 31, 2012 are as follows (balances, in thousands):