Debt of the Operating Partnership (Schedule Of Debt Maturities And Principal Maturities) (Details) (Digital Realty Trust, L.P., USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015 extension		Dec. 31, 2014
Debt Instrument [Line Items]
Remainder of 2015	$ 448,237
2016	216,979
2017	1,927,307
2018	593
2019	644
Thereafter	2,238,393
Subtotal	4,832,153
Unamortized discounts	(14,788)
Unamortized net premiums	546
Total Indebtedness	4,817,911		4,673,127
Global revolving credit facility
Debt Instrument [Line Items]
Remainder of 2015	0	[1]
2016	0	[1]
2017	826,906	[1]
2018	0	[1]
2019	0	[1]
Thereafter	0	[1]
Subtotal	826,906	[1]
Unamortized discounts	0	[1]
Unamortized net premiums	0	[1]
Total Indebtedness	826,906	[1]
Number of extension options	2
Revolving credit facility commitments extension	6 months
Unsecured term loan
Debt Instrument [Line Items]
Remainder of 2015	0	[1]
2016	0	[1]
2017	942,006	[1]
2018	0	[1]
2019	0	[1]
Thereafter	0	[1]
Subtotal	942,006	[1]
Unamortized discounts	0	[1]
Unamortized net premiums	0	[1]
Total Indebtedness	942,006	[1]
Number of extension options	2
Revolving credit facility commitments extension	6 months
Prudential Shelf Facility:
Debt Instrument [Line Items]
Remainder of 2015	0
2016	25,000
2017	50,000
2018	0
2019	0
Thereafter	0
Subtotal	75,000		142,000
Unamortized discounts	0
Unamortized net premiums	0
Total Indebtedness	75,000
Senior Notes:
Debt Instrument [Line Items]
Remainder of 2015	375,000
2016	0
2017	0
2018	0
2019	0
Thereafter	2,237,260
Subtotal	2,612,260
Unamortized discounts	(14,788)		(15,632)
Unamortized net premiums	0
Total Indebtedness	2,597,472
Mortgage Loans
Debt Instrument [Line Items]
Remainder of 2015	73,237
2016	191,979
2017	108,395
2018	593
2019	644
Thereafter	1,133
Subtotal	375,981
Unamortized discounts	0
Unamortized net premiums	546		582
Total Indebtedness	$ 376,527		$ 378,818

[1] Subject to two six-month extension options exercisable by us. The bank group is obligated to grant the extension options provided we give proper notice, we make certain representations and warranties and no default exists under the global revolving credit facility and the unsecured term loan, as applicable.