Debt Of The Operating Partnership (5.250% Notes Due 2021) (Narrative) (Details) (Digital Realty Trust, L.P. [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Mar. 08, 2011
Debt Instrument [Line Items]
Unamortized discount	$ 15,048,000
5.25% Notes Due 2021 [Member]
Debt Instrument [Line Items]
Issuance date	Mar. 08, 2011
Senior face amount		400,000,000
Maturity date	Mar. 15, 2021
Interest rate		5.25%
Purchase price paid, percentage of face amount	99.775%
Unamortized discount	900,000
Debt issuance cost	3,600,000
Borrowings on unsecured senior notes	$ 395,500,000
Leverage ratio percentage	60.00%
Secured debt ratio percentage	40.00%
Interest coverage ratio	1.50
Unencumbered assets percentage to unsecured debt	150.00%