Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014
Cash flows from operating activities:
Earnings including noncontrolling interests	$ 100,229	$ 89,424
Adjustments to reconcile earnings including noncontrolling interests to net cash provided by operating activities:
Depreciation and amortization	66,343	56,019
Impairment losses	3,714	548
Impairment – commercial mortgage residual interests valuation	428	235
Amortization of notes payable discount	639	614
Amortization of debt costs	1,423	1,353
Amortization of mortgages payable premium	(104)	(29)
Amortization of deferred interest rate hedges	832	351
Interest rate hedge payment	0	(6,312)
Gain on disposition of real estate	(7,260)	(5,020)
Performance incentive plan expense	4,968	4,712
Performance incentive plan payment	(676)	(2,808)
Change in operating assets and liabilities, net of assets acquired and liabilities assumed in business combinations:
Decrease in real estate leased to others using the direct financing method	676	666
Decrease (increase) in mortgages, notes and accrued interest receivable	71	(231)
Decrease in receivables	1,235	1,033
Increase in accrued rental income	(18)	(1,118)
Increase in other assets	(964)	(249)
Increase in accrued interest payable	52	1,390
Decrease in other liabilities	(3,528)	(3,112)
Decrease (increase) in other	(231)	785
Net cash provided by operating activities	167,829	138,251
Cash flows from investing activities:
Proceeds from the disposition of real estate	24,904	29,510
Additions to real estate:
Accounted for using the operating method	(284,612)	(186,390)
Increase in mortgages and notes receivable	0	(5,131)
Principal payments on mortgages and notes receivable	876	2,933
Other	(1,114)	(1,342)
Net cash used in investing activities	(259,946)	(160,420)
Cash flows from financing activities:
Proceeds from line of credit payable	679,800	319,000
Repayment of line of credit payable	(552,300)	(365,400)
Repayment of mortgages payable	(1,126)	(554)
Proceeds from notes payable	0	349,293
Repayment of notes payable	0	(150,000)
Payment of debt costs	(75)	(3,384)
Proceeds from issuance of common stock	88,694	76,098
Stock issuance costs	(1,623)	(1,104)
Payment of common stock dividends	(111,400)	(98,958)
Noncontrolling interest distributions	(292)	(1,232)
Net cash provided by financing activities	83,961	106,042
Net increase (decrease) in cash and cash equivalents	(8,156)	83,873
Cash and cash equivalents at beginning of year	10,604	1,485
Cash and cash equivalents at end of year	2,448	85,358
Supplemental disclosure of cash flow information:
Interest paid, net of amount capitalized	41,570	39,282
Taxes paid	196	101
Supplemental disclosure of noncash investing and financing activities:
Issued 274,693 and 378,965 shares of restricted and unrestricted common stock in 2015 and 2014, respectively, pursuant to NNN’s performance incentive plan	8,594	10,609
Issued 7,243 and 8,229 shares of common stock in 2015 and 2014, respectively, pursuant to NNN’s Deferred Director Fee Plan	131	131
Change in other comprehensive income	374	4,945
Mortgage receivable accepted in connection with real estate transactions	500	62
Note receivable accepted in connection with real estate transactions	0	70
Change in lease classification (direct financing lease to operating lease)	311	0
Series D Depositary Share
Cash flows from financing activities:
Payment of Series D and Series E preferred stock dividends	(9,523)	(9,523)
Series E Depositary Share
Cash flows from financing activities:
Payment of Series D and Series E preferred stock dividends	$ (8,194)	$ (8,194)