Debt Of The Operating Partnership (Summary Of Outstanding Indebtedness Of The Operating Partnership - Unsecured Term Loan) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2012 Unsecured Term Loan [Member] Digital Realty Trust, L.P. [Member]		Jun. 30, 2012 Unsecured Term Loan [Member] Digital Realty Trust, L.P. [Member]	Jun. 30, 2012 SGD [Member] Unsecured Term Loan [Member] Digital Realty Trust, L.P. [Member]		Jun. 30, 2012 GBP [Member]	Dec. 31, 2011 GBP [Member]	Jun. 30, 2012 GBP [Member] Unsecured Term Loan [Member] Digital Realty Trust, L.P. [Member]		Jun. 30, 2012 EUR [Member]	Dec. 31, 2011 EUR [Member]	Jun. 30, 2012 EUR [Member] Unsecured Term Loan [Member] Digital Realty Trust, L.P. [Member]		Jun. 30, 2012 AUD [Member] Unsecured Term Loan [Member] Digital Realty Trust, L.P. [Member]
Debt of the Operating Partnership [Line Items]
Revolving credit facilities interest rates	Various	[1],[2]
Maturity Date	Apr. 16, 2017
Balance/Principal Outstanding	$ 520,942	[3]	$ 206,000	$ 149,791	[4]			$ 88,116	[4]			$ 62,702	[4]	$ 14,333	[4]
Revolving credit facility basis spread on variable rate	145
Weighted-average interest rate	1.92%		1.69%	1.79%				2.14%				1.81%		5.74%
Exchange rate				0.80		1.57	1.55	1.57		1.27	1.30	1.27		1.02

[1] Interest rates are based on our senior unsecured debt ratings and are currently 145 basis points over the applicable index for floating rate advances.

[2] We have entered into interest rate swap agreements as a cash flow hedge for interest generated by these US LIBOR, EURIBOR and GBP LIBOR based loans as well as a portion of the U.S. Dollar portion of the unsecured term loan. See note 13 for further information.

[3] (4)Balances as of June 30, 2012 are as follows (balances, in thousands): Denomination of Draw Balance as of
June 30, 2012 Weighted-average
interest rate U.S. Dollar ($) $206,0001.69% Singapore Dollar (SGD) 149,791(a) 1.79% British Pound Sterling (£) 88,116(a) 2.14% Euro (€) 62,702(a) 1.81% Australian Dollar (AUD) 14,333(a) 5.74% $520,9421.92% (a)Based on exchange rates of $0.80 to 1.00 SGD, $1.57 to £1.00, $1.27 to €1.00 and $1.02 to 1.00 AUD, respectively, as of June 30, 2012.

[4] Based on exchange rates of $0.80 to 1.00 SGD, $1.57 to £1.00, $1.27 to €1.00 and $1.02 to 1.00 AUD, respectively, as of June 30, 2012.