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Dividends and Distribution Payable (Details Textual) - $ / shares	Dec. 31, 2016	Dec. 06, 2016	Dec. 31, 2015	Dec. 31, 2014
Dividends Payable [Line Items]
Dividends Payable, Amount Per Share (in dollars per share)	$ 1.92		$ 1.845	$ 1.74
Agree Limited Partnership [Member]
Dividends Payable [Line Items]
Dividends Payable, Amount Per Share (in dollars per share)		$ 0.495

X

- Definition

The per share amount of a dividend declared, but not paid, as of the financial reporting date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586

+ Details

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Balance Type:	na
Period Type:	instant

X

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

X

- Details

Name:	dei_LegalEntityAxis=adc_AgreeLimitedPartnershipMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: