v3.26.3
Stockholders' Equity - Schedule of Common Stock Issuances Pursuant to NNN's ATM (Details) - USD ($)
$ / shares in Units, $ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Class of Stock [Line Items]        
Shares of common stock 502,305 0 8,169,065 0
Common stock issued Shares 2,000,000 1,655,053 3,667,232 1,891,959
Less: stock issuance costs     $ (1,363) $ (4,411)
Net proceeds     $ 167,533 $ 83,253
ATM Equity Program [Member]        
Class of Stock [Line Items]        
Shares of common stock [1] 502,305 1,655,053 8,169,065 1,891,959
Average price per share (net) $ 47.28 $ 42.91 $ 45.8 $ 42.94
Common stock issued Shares [2] 2,000,000 1,655,053 3,667,232 1,891,959
Average per share price (gross) $ 45.46 $ 42.91 $ 45.14 $ 42.94
Gross proceeds $ 90,924 $ 71,013 $ 165,541 $ 81,243
Less: stock issuance costs [3] (1,953) (1,277) (3,291) (1,529)
Net proceeds $ 88,971 $ 69,736 $ 162,250 $ 79,714
[1]

Includes 502,305 and 8,169,065 shares of common stock underlying forward sale agreements entered into during the quarter and nine months ended September 30, 2026, respectively. There were no shares of common stock underlying forward sales agreements during the quarter and nine months ended September 30, 2025.
[2]

Includes 2,000,000 and 3,667,232 shares of common stock issued in settlement of forward sale agreements during the quarter and nine months ended September 30, 2026. There were no shares of common stock issued in settlement of forward sale agreements during the quarter and nine months ended September 30, 2025.
[3]

Stock issuance costs consist primarily of underwriters' and agents' fees and commissions and legal and accounting fees.