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Capital and Accumulated Other Comprehensive Loss (Schedule of Distributions) (Details) - Digital Realty Trust, L.P. $ / shares in Units, $ in Thousands | 3 Months Ended
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Mar. 31, 2018 USD ($) $ / shares
Series C Preferred Units |
Dividends Payable [Line Items] |
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | $ 1.65625
Series G Preferred Unite |
Dividends Payable [Line Items] |
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | 1.46875
Series H Preferred Units |
Dividends Payable [Line Items] |
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | 1.84375
Series I Preferred Units |
Dividends Payable [Line Items] |
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | 1.5875
Series J Preferred Units |
Dividends Payable [Line Items] |
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | 1.3125
Common Units |
Dividends Payable [Line Items] |
Common stock dividend per share amount (in dollars per share/unit) | $ / shares | $ 4.04
March 1, 2018 Installment | Series C Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ | $ 3,333
March 1, 2018 Installment | Series G Preferred Unite |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ | 3,672
March 1, 2018 Installment | Series H Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ | 6,730
March 1, 2018 Installment | Series I Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ | 3,969
March 1, 2018 Installment | Series J Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ | 2,625
March 1, 2018 Installment | Common Units |
Dividends Payable [Line Items] |
Dividends/Distributions, common stock/units | $ | $ 216,953

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