Equity And Accumulated Other Comprehensive Income, Net (Summary Of Activity For Noncontrolling Interests In The Operating Partnership) (Details)	3 Months Ended
	Mar. 31, 2015
Common and Incentive Unit Activity [Roll Forward]
Beginning balance	3,013,661
Redemption of common units for shares of Digital Realty Trust, Inc. common stock	(38,500)	[1]
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock	(40,774)	[1]
Cancellation of incentive units held by employees and directors	(11,549)
Grant of incentive units to employees and directors	1,873
Ending balance	2,924,711
Common Units
Common and Incentive Unit Activity [Roll Forward]
Beginning balance	1,463,814
Redemption of common units for shares of Digital Realty Trust, Inc. common stock	(38,500)	[1]
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock	0	[1]
Cancellation of incentive units held by employees and directors	0
Grant of incentive units to employees and directors	0
Ending balance	1,425,314
Incentive Units
Common and Incentive Unit Activity [Roll Forward]
Beginning balance	1,549,847
Redemption of common units for shares of Digital Realty Trust, Inc. common stock	0	[1]
Conversion of incentive units held by employees and directors for shares of Digital Realty Trust, Inc. common stock	(40,774)	[1]
Cancellation of incentive units held by employees and directors	(11,549)
Grant of incentive units to employees and directors	1,873
Ending balance	1,499,397

[1] This redemption was recorded as a reduction to noncontrolling interests in the Operating Partnership and an increase to common stock and additional paid in capital based on the book value per unit in the accompanying condensed consolidated balance sheet of Digital Realty Trust, Inc.