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Equity and Capital - Equity Distribution Agreement (Details) - 2022 Sales Agreement - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2022 | Apr. 01, 2022
Class of Stock [Line Items] |  |
Aggregate maximum offering price |  | $ 1,500.0
Amount of shares reserved for future issuance | $ 1,500.0 |
Aggregate gross sales price unsold | $ 0.0 |

X
- Definition Aggregate gross sales price that remained unsold under the prior program. + References No definition available. + Details
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Namespace Prefix: | dlr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Amount of common stock available for future sales. + References No definition available. + Details
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Namespace Prefix: | dlr_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The maximum amount for which shares could be sold under the sales agreement. + References No definition available. + Details
Name: | dlr_SalesAgreementMaximumAmountForWhichSharesCouldBeSold
Namespace Prefix: | dlr_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition 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. + References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |