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Real Estate Investments - Developments (Details) - site | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Real Estate Investments |  |  |  |
Projects completed | 8 | 6 | 18 | 12
Projects commenced | 5 | 8 | 10 | 17
Projects under construction at period-end | 12 | 21 | 12 | 21

X
- Definition The number of Development And Developer Funding Platform Projects commenced during reporting period. + References No definition available. + Details
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Namespace Prefix: | adc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of Development and Developer Funding Platform Projects completed during the reporting period. + References No definition available. + Details
Name: | adc_NumberOfDevelopmentAndDeveloperFundingPlatformProjectsCompleted
Namespace Prefix: | adc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of Development and Developer Funding Platform projects being constructed or beginning construction. + References No definition available. + Details
Name: | adc_NumberOfDevelopmentAndDeveloperFundingPlatformProjectsConstruction
Namespace Prefix: | adc_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_RealEstateAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration