CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($)		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018
Cash flows from operating activities:
Net earnings		$ 225,822,000	$ 255,915,000
Adjustments to reconcile net earnings to net cash provided by operating activities:
Depreciation and amortization		140,769,000	130,280,000
Impairment losses – real estate, net of recoveries		21,124,000	9,718,000
Amortization of notes payable discount		1,297,000	1,401,000
Amortization of debt costs		2,787,000	2,695,000
Amortization of mortgages payable premium		(64,000)	(64,000)
Amortization of interest rate hedges		975,000	1,581,000
Settlement of forward starting swaps		0	4,080,000
Gain on disposition of real estate		(25,508,000)	(57,050,000)
Performance incentive plan expense		8,581,000	7,231,000
Performance incentive plan payment		(775,000)	(432,000)
Change in operating assets and liabilities, net of assets acquired and liabilities assumed:
Decrease in real estate leased to others using the direct financing method		508,000	655,000
Decrease in receivables		915,000	1,554,000
Increase in accrued rental income		(1,702,000)	(871,000)
Increase in other assets		(375,000)	(1,052,000)
Increase in accrued interest payable		26,367,000	14,987,000
Decrease in other liabilities		(1,500,000)	(4,848,000)
Other		(189,000)	(272,000)
Net cash provided by operating activities		399,032,000	365,508,000
Cash flows from investing activities:
Proceeds from the disposition of real estate		92,586,000	121,810,000
Additions to real estate:
Accounted for using the operating method		(505,693,000)	(415,118,000)
Principal payments on mortgages and notes receivable		3,100,000	0
Other		985,000	(433,000)
Net cash used in investing activities		(409,022,000)	(293,741,000)
Cash flows from financing activities:
Proceeds from line of credit payable		429,200,000	1,599,500,000
Repayment of line of credit payable		(429,200,000)	(1,720,000,000)
Repayment of mortgages payable		(422,000)	(400,000)
Proceeds from notes payable		0	692,913,000
Payment of debt issuance costs		(115,000)	(5,506,000)
Proceeds from issuance of common stock		539,318,000	220,524,000
Stock issuance costs		(17,274,000)	(2,908,000)
Payment of common stock dividends		(245,574,000)	(223,836,000)
Noncontrolling interest distributions		(776,000)	0
Net cash provided by financing activities		249,411,000	534,541,000
Net increase in cash, cash equivalents and restricted cash		239,421,000	606,308,000
Cash, cash equivalents and restricted cash at beginning of period	[1]	114,267,000	1,364,000
Cash, cash equivalents and restricted cash at end of period	[1]	353,688,000	607,672,000
Supplemental disclosure of cash flow information:
Interest paid, net of amount capitalized		59,151,000	62,806,000
Supplemental disclosure of noncash investing and financing activities:
Increase (decrease) in other comprehensive income		11,978,000	(5,726,000)
Right-of-use assets recorded in connection with lease liabilities		8,224,000	0
Mortgage receivable accepted in connection with real estate transactions		3,100,000	0
Change in lease classification (direct financing lease to operating lease)		0	565,000
Change in lease classification (operating lease to direct financing lease)		0	258,000
Restricted cash and cash held in escrow		0	0
Series E Preferred Stock
Cash flows from financing activities:
Payment of preferred stock dividends		(12,291,000)	(12,291,000)
Series F Preferred Stock
Cash flows from financing activities:
Payment of preferred stock dividends		$ (13,455,000)	$ (13,455,000)

[1] Cash, cash equivalents and restricted cash is the aggregate of cash and cash equivalents and restricted cash and cash held in escrow from the Condensed Consolidated Balance Sheets. NNN had no restricted cash and cash held in escrow at September 30, 2019 and 2018.