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Capital and Accumulated Other Comprehensive Loss (Schedule of Distributions) (Details) - Digital Realty Trust, L.P. $ / shares in Units, $ in Thousands | 9 Months Ended
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Sep. 30, 2018 USD ($) $ / shares
Series C Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ 9,999
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | $ 1.65625
Potentially dilutive Series G Cumulative Redeemable Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ 11,016
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | $ 1.46875
Potentially dilutive Series H Cumulative Redeemable Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ 20,190
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | $ 1.84375
Series I Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ 11,907
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | $ 1.5875
Series J Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | $ 7,875
Preferred stock dividend per share amount (in dollars per share/unit) | $ / shares | $ 1.3125
Common Units |
Dividends Payable [Line Items] |
Dividends/Distributions, common stock/units | $ 650,567
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 | Potentially dilutive Series G Cumulative Redeemable Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 3,672
March 1, 2018 Installment | Potentially dilutive Series H Cumulative Redeemable 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
May 8, 2018 Installment | Series C Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 3,333
May 8, 2018 Installment | Potentially dilutive Series G Cumulative Redeemable Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 3,672
May 8, 2018 Installment | Potentially dilutive Series H Cumulative Redeemable Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 6,730
May 8, 2018 Installment | Series I Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 3,969
May 8, 2018 Installment | Series J Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 2,625
May 8, 2018 Installment | Common Units |
Dividends Payable [Line Items] |
Dividends/Distributions, common stock/units | 216,789
August 11, 2018 Installment | Series C Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 3,333
August 11, 2018 Installment | Potentially dilutive Series G Cumulative Redeemable Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 3,672
August 11, 2018 Installment | Potentially dilutive Series H Cumulative Redeemable Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 6,730
August 11, 2018 Installment | Series I Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 3,969
August 11, 2018 Installment | Series J Preferred Units |
Dividends Payable [Line Items] |
Dividends/Distributions, preferred units | 2,625
August 11, 2018 Installment | Common Units |
Dividends Payable [Line Items] |
Dividends/Distributions, common stock/units | $ 216,825

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