Capital And Accumulated Other Comprehensive Income (Loss) (Schedule Of Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, net, Beginning balance	$ 10,691
Net current period change	2,427
Reclassification to interest expense from interest rate swaps	829
Accumulated other comprehensive loss, net, Ending balance	13,947
Digital Realty Trust, L.P. [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, net, Beginning balance	8,457
Net current period change	2,476
Reclassification to interest expense from interest rate swaps	846
Accumulated other comprehensive loss, net, Ending balance	11,779
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, net, Beginning balance	11,745
Net current period change	3,743
Accumulated other comprehensive loss, net, Ending balance	15,488
Foreign Currency Translation Adjustments [Member] | Digital Realty Trust, L.P. [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, net, Beginning balance	10,235
Net current period change	3,819
Accumulated other comprehensive loss, net, Ending balance	14,054
Cash Flow Hedge Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, net, Beginning balance	(1,054)
Net current period change	(1,316)
Reclassification to interest expense from interest rate swaps	829
Accumulated other comprehensive loss, net, Ending balance	(1,541)
Cash Flow Hedge Adjustments [Member] | Digital Realty Trust, L.P. [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive loss, net, Beginning balance	(1,778)
Net current period change	(1,343)
Reclassification to interest expense from interest rate swaps	846
Accumulated other comprehensive loss, net, Ending balance	$ (2,275)