Preferred Stock	12 Months Ended
Dec. 31, 2013
Preferred Stock [Abstract]
Preferred Stock	Preferred Stock: 7.375% Series C Cumulative Redeemable Preferred Stock. In October 2006, NNN issued 3,680,000 depositary shares, each representing 1/100^th of a share of Series C Preferred Stock. In March 2012, NNN redeemed all 3,680,000 outstanding depositary shares representing interests in its Series C Preferred Stock. The Series C Preferred Stock was redeemed at $25.00 per depositary share, plus accumulated and unpaid distributions through the redemption date, for an aggregate redemption price of $25.0768229 per depositary share. The excess carrying amount of preferred stock redeemed over the cash paid to redeem the preferred stock was $3,098,000 of Series C Preferred Stock issuance costs. 6.625% Series D Cumulative Redeemable Preferred Stock. In February 2012, NNN completed an underwritten public offering of 11,500,000 depositary shares (including 1,500,000 shares in connection with the underwriters over-allotment), each representing a 1/100^th of a share of Series D Preferred Stock, and received gross proceeds of $287,500,000. In connection with this offering, the Company incurred stock issuance costs of approximately $9,855,000, consisting primarily of underwriting commissions and fees, legal and accounting fees and printing expenses. Holders of the Series D depositary shares are entitled to receive, when and as authorized by the Board of Directors, cumulative preferential cash dividends at the rate of 6.625% of the $25.00 liquidation preference per depositary share per annum (equivalent to a fixed annual amount of $1.65625 per depositary share). The Series D Preferred Stock underlying the depositary shares ranks senior to NNN’s common stock with respect to dividend rights and rights upon liquidation, dissolution or winding up of NNN. The Series D Preferred Stock has no maturity date and will remain outstanding unless redeemed. NNN may redeem the Series D Preferred Stock underlying the depositary shares on or after September 23, 2017, for cash, at a redemption price of $2,500.00 per share (or $25.00 per depositary share), plus all accumulated and unpaid dividends. In addition, upon a change of control, as defined in the articles supplementary fixing the rights and preferences of the Series D Preferred Stock, NNN may redeem the Series D Preferred Stock underlying the depositary shares at a redemption price of $2,500.00 per share (or $25.00 per depositary share), plus all accumulated and unpaid dividends, and in limited circumstances the holders of depositary shares may convert some or all of their Series D Preferred Stock into shares of NNN's common stock at conversion rates provided in the related articles supplementary. As of February 19, 2014, the Series D Preferred Stock was not redeemable or convertible. 5.700% Series E Cumulative Redeemable Preferred Stock. In May 2013, NNN completed an underwritten public offering of 11,500,000 depositary shares (including 1,500,000 shares issued in connection with the underwriters' over-allotment), each representing a 1/100th interest in a share of its newly designated 5.700% Series E Cumulative Redeemable Preferred Stock, and received gross proceeds of $287,500,000. In connection with this offering, the Company incurred stock issuance costs of approximately $9,856,000, consisting primarily of underwriting commissions and fees, rating agency fees, legal and accounting fees and printing expenses. The Company used the net proceeds from the offering for general corporate purposes and funding property acquisitions. Holders of the Series E depositary shares are entitled to receive, when and as authorized by the Board of Directors, cumulative preferential cash dividends at the rate of 5.700% of the $25.00 liquidation preference per depositary share per annum (equivalent to a fixed annual amount of $1.425 per depositary share). The Series E Preferred Stock underlying the depositary shares ranks senior to NNN’s common stock with respect to dividend rights and rights upon liquidation, dissolution or winding up of NNN. The Series E Preferred Stock has no maturity date and will remain outstanding unless redeemed. NNN may redeem the Series E Preferred Stock underlying the depositary shares on or after May 30, 2018, for cash, at a redemption price of $2,500.00 per share (or $25.00 per depositary share), plus all accumulated and unpaid dividends. In addition, upon a change of control, as defined in the articles supplementary fixing the rights and preferences of the Series E Preferred Stock, NNN may redeem the Series E Preferred Stock underlying the depositary shares at a redemption price of $2,500.00 per share (or $25.00 per depositary share), plus all accumulated and unpaid dividends, and in limited circumstances the holders of depositary shares may convert some or all of their Series E Preferred Stock into shares of NNN's common stock at conversion rates provided in the related articles supplementary. As of February 19, 2014, the Series E Preferred Stock was not redeemable or convertible.

Preferred Stock:

7.375% Series C Cumulative Redeemable Preferred Stock. In October 2006, NNN issued 3,680,000 depositary shares, each representing 1/100^th of a share of Series C Preferred Stock.

In March 2012, NNN redeemed all 3,680,000 outstanding depositary shares representing interests in its Series C Preferred Stock. The Series C Preferred Stock was redeemed at $25.00 per depositary share, plus accumulated and unpaid distributions through the redemption date, for an aggregate redemption price of $25.0768229 per depositary share. The excess carrying amount of preferred stock redeemed over the cash paid to redeem the preferred stock was $3,098,000 of Series C Preferred Stock issuance costs.

6.625% Series D Cumulative Redeemable Preferred Stock. In February 2012, NNN completed an underwritten public offering of 11,500,000 depositary shares (including 1,500,000 shares in connection with the underwriters over-allotment), each representing a 1/100^th of a share of Series D Preferred Stock, and received gross proceeds of $287,500,000. In connection with this offering, the Company incurred stock issuance costs of approximately $9,855,000, consisting primarily of underwriting commissions and fees, legal and accounting fees and printing expenses.

Holders of the Series D depositary shares are entitled to receive, when and as authorized by the Board of Directors, cumulative preferential cash dividends at the rate of 6.625% of the $25.00 liquidation preference per depositary share per annum (equivalent to a fixed annual amount of $1.65625 per depositary share). The Series D Preferred Stock underlying the depositary shares ranks senior to NNN’s common stock with respect to dividend rights and rights upon liquidation, dissolution or winding up of NNN. The Series D Preferred Stock has no maturity date and will remain outstanding unless redeemed. NNN may redeem the Series D Preferred Stock underlying the depositary shares on or after September 23, 2017, for cash, at a redemption price of $2,500.00 per share (or $25.00 per depositary share), plus all accumulated and unpaid dividends. In addition, upon a change of control, as defined in the articles supplementary fixing the rights and preferences of the Series D Preferred Stock, NNN may redeem the Series D Preferred Stock underlying the depositary shares at a redemption price of $2,500.00 per share (or $25.00 per depositary share), plus all accumulated and unpaid dividends, and in limited circumstances the holders of depositary shares may convert some or all of their Series D Preferred Stock into shares of NNN's common stock at conversion rates provided in the related articles supplementary. As of February 19, 2014, the Series D Preferred Stock was not redeemable or convertible.

5.700% Series E Cumulative Redeemable Preferred Stock. In May 2013, NNN completed an underwritten public offering of 11,500,000 depositary shares (including 1,500,000 shares issued in connection with the underwriters' over-allotment), each representing a 1/100th interest in a share of its newly designated 5.700% Series E Cumulative Redeemable Preferred Stock, and received gross proceeds of $287,500,000. In connection with this offering, the Company incurred stock issuance costs of approximately $9,856,000, consisting primarily of underwriting commissions and fees, rating agency fees, legal and accounting fees and printing expenses. The Company used the net proceeds from the offering for general corporate purposes and funding property acquisitions.

Holders of the Series E depositary shares are entitled to receive, when and as authorized by the Board of Directors, cumulative preferential cash dividends at the rate of 5.700% of the $25.00 liquidation preference per depositary share per annum (equivalent to a fixed annual amount of $1.425 per depositary share). The Series E Preferred Stock underlying the depositary shares ranks senior to NNN’s common stock with respect to dividend rights and rights upon liquidation, dissolution or winding up of NNN. The Series E Preferred Stock has no maturity date and will remain outstanding unless redeemed. NNN may redeem the Series E Preferred Stock underlying the depositary shares on or after May 30, 2018, for cash, at a redemption price of $2,500.00 per share (or $25.00 per depositary share), plus all accumulated and unpaid dividends. In addition, upon a change of control, as defined in the articles supplementary fixing the rights and preferences of the Series E Preferred Stock, NNN may redeem the Series E Preferred Stock underlying the depositary shares at a redemption price of $2,500.00 per share (or $25.00 per depositary share), plus all accumulated and unpaid dividends, and in limited circumstances the holders of depositary shares may convert some or all of their Series E Preferred Stock into shares of NNN's common stock at conversion rates provided in the related articles supplementary. As of February 19, 2014, the Series E Preferred Stock was not redeemable or convertible.