Document And Entity Information	9 Months Ended
Sep. 30, 2011	Nov. 01, 2011
Document Type	10-Q
Document Period End Date	Sep. 30, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3
Amendment Flag	false
Entity Registrant Name	Digital Realty Trust, Inc.
Entity Central Index Key	0001297996
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		104,954,380
Digital Realty Trust, L.P. [Member]
Document Period End Date	Sep. 30, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q3
Entity Registrant Name	Digital Realty Trust, L.P.
Entity Central Index Key	0001494877
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer

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