Dividends and Distributions Payable (Details) - $ / shares	1 Months Ended		3 Months Ended
	Dec. 31, 2021	Sep. 30, 2021	Dec. 31, 2021	Dec. 01, 2021	Dec. 31, 2020	Dec. 31, 2019
Dividends Payable [Line Items]
Cash dividends declared per common share (in dollars per share)	$ 2.604		$ 2.604		$ 2.405	$ 2.280
Cash dividends declared per depositary share of Series A preferred stock	$ 0.08854
Agree Limited Partnership [Member]
Dividends Payable [Line Items]
Cash dividends declared per common share (in dollars per share)				$ 0.227
Redeemable Preferred Stock [Member]
Dividends Payable [Line Items]
Cash dividends declared per depositary share of Series A preferred stock		$ 0.04132	$ 0.30695