Document And Entity Information - shares	9 Months Ended
	Sep. 30, 2018	Oct. 19, 2018
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2018
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q3
Entity Registrant Name	AGREE REALTY CORP
Entity Central Index Key	0000917251
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Trading Symbol	ADC
Entity Common Stock, Shares Outstanding		34,481,545
Entity Emerging Growth Company	false
Entity Small Business	false