Capital And Accumulated Other Comprehensive Income (Schedule Of Accumulated Other Comprehensive Income (Loss)) (Details) (USD $) In Thousands, unless otherwise specified	6 Months Ended
	Jun. 30, 2014
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net, Beginning balance	$ 10,691
Net current period change	2,606
Reclassification to interest expense from interest rate swaps	1,665
Accumulated other comprehensive income, net, Ending balance	14,962
Digital Realty Trust, L.P. [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net, Beginning balance	8,457
Net current period change	2,658
Reclassification to interest expense from interest rate swaps	1,700
Accumulated other comprehensive income, net, Ending balance	12,815
Foreign Currency Translation Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net, Beginning balance	11,745
Net current period change	8,563
Accumulated other comprehensive income, net, Ending balance	20,308
Foreign Currency Translation Adjustments [Member] | Digital Realty Trust, L.P. [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net, Beginning balance	10,235
Net current period change	8,740
Accumulated other comprehensive income, net, Ending balance	18,975
Cash Flow Hedge Adjustments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net, Beginning balance	(1,054)
Net current period change	(5,957)
Reclassification to interest expense from interest rate swaps	1,665
Accumulated other comprehensive income, net, Ending balance	(5,346)
Cash Flow Hedge Adjustments [Member] | Digital Realty Trust, L.P. [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Accumulated other comprehensive income, net, Beginning balance	(1,778)
Net current period change	(6,082)
Reclassification to interest expense from interest rate swaps	1,700
Accumulated other comprehensive income, net, Ending balance	$ (6,160)