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Debt Of The Operating Partnership (4.25% Notes Due 2025) (Narrative) (Details) (Digital Realty Trust, L.P. [Member])
12 Months Ended
Dec. 31, 2013
USD ($)
Dec. 31, 2013
4.25% Notes Due 2025 [Member]
USD ($)
Jan. 18, 2013
4.25% Notes Due 2025 [Member]
USD ($)
Jan. 18, 2013
4.25% Notes Due 2025 [Member]
GBP (£)
Debt Instrument [Line Items]        
Issuance date   Jan. 18, 2013    
Senior face amount     $ 634,800,000 £ 400,000,000
Exchange rate     1.59  
Unamortized discount 15,048,000 4,800,000    
Debt issuance cost   5,800,000    
Borrowings on unsecured senior notes   $ 624,200,000    
Leverage ratio percentage   60.00%    
Secured debt ratio percentage   40.00%    
Interest coverage ratio   1.50    
Unencumbered assets percentage to unsecured debt   150.00%