Debt of the Operating Partnership - Schedule of Debt Maturities And Principal Payments (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($) item	Dec. 31, 2019 USD ($)
Debt Instrument
Interest rate basis spread	0.90%
Digital Realty Trust, L.P.
Debt Instrument
2022	$ 733,290
2023	1,484,711
2024	1,121,653
2025	1,790,840
Thereafter	8,282,519
Subtotal	13,413,013
Unamortized discounts, net of premiums	(40,919)
Unamortized premium	5,927
Long-term debt, net of discount (premium)	$ 13,378,021
Digital Realty Trust, L.P. \| Global revolving credit facilities, net
Debt Instrument
Interest rate basis spread	0.90%
2021	$ 0
2022	0
2023	493,241
2024	46,943
2025	0
Thereafter	0
Subtotal	540,184	$ 245,766
Unamortized discounts, net of premiums	0
Unamortized premium	0
Long-term debt, net of discount (premium)	$ 540,184
Number of extension options \| item	2
Debt instrument, extension term	6 months
Digital Realty Trust, L.P. \| Unsecured term loans, net
Debt Instrument
2021	$ 0
2022	0
2023	537,470
2024	0
2025	0
Thereafter	0
Subtotal	537,470
Unamortized discounts, net of premiums	0
Unamortized premium	0
Long-term debt, net of discount (premium)	$ 537,470
Debt instrument, extension term	6 months
Digital Realty Trust, L.P. \| Senior Notes.
Debt Instrument
2021	$ 0
2022	732,960
2023	350,000
2024	1,074,710
2025	1,790,840
Thereafter	8,147,519
Subtotal	12,096,029
Unamortized discounts, net of premiums	(40,915)
Unamortized premium	5,927
Long-term debt, net of discount (premium)	12,061,041
Digital Realty Trust, L.P. \| Secured Debt
Debt Instrument
2021	0
2022	330
2023	104,000
2024	0
2025	0
Thereafter	135,000
Subtotal	239,330
Unamortized discounts, net of premiums	(4)
Unamortized premium	0
Long-term debt, net of discount (premium)	$ 239,326	$ 105,143

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Long-term Debt, Net of Discount (Premium)

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Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt premium.

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Amount of long-term debt payable, sinking fund requirement, and other securities issued that are redeemable by holder at fixed or determinable price and date, maturing after fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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