CONSOLIDATED STATEMENTS OF EQUITY - USD ($)	Total	Series F Preferred Stock	Total Stockholders' Equity of NNN	Total Stockholders' Equity of NNN Series F Preferred Stock	Preferred Stock Series F Preferred Stock	Common Stock	Capital in Excess of Par Value	Capital in Excess of Par Value Series F Preferred Stock	Accumulated Deficit	Accumulated Deficit Series F Preferred Stock	Accumulated Other Comprehensive Income (Loss)	Noncontrolling Interests
Beginning balance at Dec. 31, 2020	$ 4,319,304,000		$ 4,319,300,000		$ 345,000,000	$ 1,753,000	$ 4,633,771,000		$ (644,779,000)		$ (16,445,000)	$ 4,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	290,110,000		290,113,000						290,113,000			(3,000)
Dividends declared and paid:
Preferred stock dividends declared and paid		$ (14,999,000)		$ (14,999,000)						$ (14,999,000)
Common stock dividends declared and paid	(364,792,000)		(364,792,000)			0	2,499,000		(367,291,000)
Redemption of depositary shares		$ (345,000,000)		$ (345,000,000)	(345,000,000)			$ 10,897,000		$ (10,897,000)
Issuance of common stock:
Director compensation	1,145,000		1,145,000				1,145,000
Stock purchase plan	320,000		320,000				320,000
ATM equity program	1,234,000		1,234,000			1,000	1,233,000
Restricted shares - net of forfeitures and repurchases						3,000	(3,000)
Stock issuance costs	(299,000)		(299,000)				(299,000)
Amortization of deferred compensation	13,151,000		13,151,000				13,151,000
Amortization of interest rate hedges	3,073,000		3,073,000								3,073,000
Fair value of forward starting swaps	(1,584,000)		(1,584,000)								(1,584,000)
Ending balance at Dec. 31, 2021	3,901,663,000		3,901,662,000		$ 0	1,757,000	4,662,714,000		(747,853,000)		(14,956,000)	1,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	334,621,000		334,626,000						334,626,000			(5,000)
Dividends declared and paid:
Common stock dividends declared and paid	(377,773,000)		(377,773,000)				2,765,000		(380,538,000)
Issuance of common stock:
Director compensation	1,244,000		1,244,000				1,244,000
Stock purchase plan	317,000		317,000				317,000
ATM equity program	250,890,000		250,890,000			55,000	250,835,000
Restricted shares - net of forfeitures and repurchases						3,000	(3,000)
Stock issuance costs	(3,761,000)		(3,761,000)				(3,761,000)
Amortization of deferred compensation	14,205,000		14,205,000				14,205,000
Amortization of interest rate hedges	2,374,000		2,374,000								2,374,000
Fair value of forward starting swaps	0
Distributions to noncontrolling interests	(278,000)											278,000
Other			(282,000)				(282,000)					282,000
Ending balance at Dec. 31, 2022	4,123,502,000		4,123,502,000			1,815,000	4,928,034,000		(793,765,000)		(12,582,000)	$ 0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net earnings	392,340,000		392,340,000						392,340,000
Dividends declared and paid:
Common stock dividends declared and paid			(401,560,000)			(1,000)	2,897,000		(404,458,000)
Issuance of common stock:
Director compensation			1,128,000				1,128,000		0
Stock purchase plan			280,000				280,000		0
ATM equity program			29,150,000			7,000	29,143,000		0
Restricted shares - net of forfeitures and repurchases						3,000	(3,000)
Stock issuance costs			(954,000)				(954,000)		0
Amortization of deferred compensation			11,100,000				11,100,000		0
Amortization of interest rate hedges	2,471,000		2,471,000								2,471,000
Fair value of forward starting swaps	$ 0
Ending balance at Dec. 31, 2023			$ 4,157,457,000			$ 1,826,000	$ 4,971,625,000		$ (805,883,000)		$ (10,111,000)