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Equity - Summary of Dividends Declared (Parenthetical) (Detail) | 6 Months Ended
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Jun. 30, 2026
Performance Based LTIP Units[Member] |
Dividends Payable [Line Items] |
Operating partnership dividend rate percentage | 10.00%
Service Based LTIP Units[Member] |
Dividends Payable [Line Items] |
Operating partnership dividend rate percentage | 100.00%

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- Definition Common unit dividend rate percentage. + References No definition available. + Details
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Namespace Prefix: | dea_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

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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
Name: | us-gaap_DividendsPayableLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | us-gaap_AwardTypeAxis=dea_PerformanceBasedLTIPUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_AwardTypeAxis=dea_ServiceBasedLTIPUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |