Summary of Significant Accounting Policies - Earnings per Share (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Earnings Per Share Basic And Diluted [Line Items]
Net income attributable to Agree Realty Corporation	$ 152,437	$ 122,273	$ 91,381
Less: Series A preferred stock dividends	(7,437)	(2,148)	0
Net Income Attributable to Common Stockholders	145,000	120,125	91,381
Less: Income attributable to unvested restricted shares	(376)	(369)	(297)
Net income used in basic and diluted earnings per share	$ 144,624	$ 119,756	$ 91,084
Weighted average number of common shares outstanding	78,885,063	67,004,069	52,013,137
Less: Unvested restricted stock	(225,730)	(201,827)	(174,918)
Weighted average number of common shares outstanding used in basic earnings per share	78,659,333	66,802,242	51,838,219
Weighted average number of common shares outstanding used in basic earnings per share	78,659,333	66,802,242	51,838,219
Effect of dilutive securities:
Share-based compensation	129,474	118,460	95,103
Weighted average number of common shares outstanding used in diluted earnings per share	79,164,386	67,139,079	52,396,734
Restricted Stock [Member]
Effect of dilutive securities:
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount	62	2,092
Performance Units [Member]
Effect of dilutive securities:
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			1,547
2019 ATM Forward Equity Offerings
Effect of dilutive securities:
Forward equity offering	0	0	14,289
2019 ATM Forward Equity Offerings | Forward Sale Agreement [Member]
Effect of dilutive securities:
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount			17,114
2020 ATM Forward Equity Offerings
Effect of dilutive securities:
Forward equity offering	0	153,200	19,777
2020 ATM Forward Equity Offerings | Forward Sale Agreement [Member]
Effect of dilutive securities:
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		5,360	27,753
April 2020 Forward Equity
Effect of dilutive securities:
Forward equity offering	0	0	429,346
2021 ATM Forward Equity Offerings
Effect of dilutive securities:
Forward equity offering	0	50,757	0
2021 ATM Forward Equity Offerings | Forward Sale Agreement [Member]
Effect of dilutive securities:
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		849
December 2021 Forward Offering
Effect of dilutive securities:
Forward equity offering	89,963	14,420	0
2022 ATM Forward Equity Offerings
Effect of dilutive securities:
Forward equity offering	63,381	0	0
May 2022 Forward Offering
Effect of dilutive securities:
Forward equity offering	173,429	0	0
September 2022 Forward Offering
Effect of dilutive securities:
Forward equity offering	48,806	0	0