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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