Debt Of The Operating Partnership (4.500% Notes Due 2015) (Narrative) (Details) (Digital Realty Trust, L.P. [Member], USD $)	12 Months Ended
	Dec. 31, 2013	Jul. 08, 2010
Debt Instrument [Line Items]
Unamortized discount	$ 15,048,000
4.50% Notes Due 2015 [Member]
Debt Instrument [Line Items]
Issuance date	Jul. 08, 2010
Senior face amount		375,000,000
Maturity date	Jul. 15, 2015
Interest rate		4.50%
Purchase price paid, percentage of face amount	99.697%
Unamortized discount	1,100,000
Debt issuance cost	3,100,000
Borrowings on unsecured senior notes	$ 370,800,000
Leverage ratio percentage	60.00%
Secured debt ratio percentage	40.00%
Interest coverage ratio	1.50
Unencumbered assets percentage to unsecured debt	150.00%