Real Estate Investments - Assets Held for Sale (Details) $ in Thousands	Jun. 30, 2025 USD ($) property	Dec. 31, 2024 property
Real Estate Investments
Number of real estate properties held-for-sale \| property	3	0
Land	$ 723
Building	2,812
Accumulated depreciation	(194)
Real estate held-for-sale, gross	3,341
Lease intangibles, net	132
Total real estate held for sale, net	$ 3,473

Net amount of lease intangible assets and liabilities.

No definition available.

Name:	adc_LeaseIntangibleAssetsAndLiabilitiesNet
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Number Of Real Estate Properties Held-For-Sale.

No definition available.

Name:	adc_NumberOfRealEstatePropertiesHeldForSale
Namespace Prefix:	adc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

The cumulative amount of depreciation for real estate property held for sale.

No definition available.

Name:	adc_RealEstateHeldForSaleAccumulatedDepreciation
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Gross amount as of investments in buildings held for sale, excluding real estate considered to be inventory of the entity.

No definition available.

Name:	adc_RealEstateHeldForSaleBuilding
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Amount of real estate held for sale excluding lease assets and liabilities, net of accumulated depreciation at the end of the reporting period.

No definition available.

Name:	adc_RealEstateHeldForSaleExcludingLeaseIntangibleAssetsAndLiabilitiesNet
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Gross amount as of investments in land held for sale, excluding real estate considered to be inventory of the entity.

No definition available.

Name:	adc_RealEstateHeldForSaleLand
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

The amount of real estate investments, net of accumulated depreciation .

No definition available.

Name:	adc_RealEstateHeldForSaleNetTotal
Namespace Prefix:	adc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

No definition available.