v3.25.4
Schedule IV - Mortgage Loans on Real Estate (Details) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]      
Face Amount of Mortgages $ 0    
Carrying amount of mortgages 0 [1],[2] $ 451 $ 996
Principal Amount of Loans Subject to Delinquent Principal or Interest 0    
SEC Schedule, 12-29, Real Estate Companies, Investment in Movement in Mortgage Loans on Real Estate [Roll Forward]      
Balance at beginning of year 451 996 1,521
New mortgage loans 0 0 0
Deductions during the year:      
Collections of principal (460) (599) (559)
Other: credit (losses) recoveries [3] 9 54 34
Foreclosures 0 0 0
Balance at the close of year 0 [1],[2] 451 996
Mortgages held, federal income tax basis   $ 454 $ 1,002
2 properties in VA      
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]      
Face Amount of Mortgages 0    
Carrying amount of mortgages [1] 0    
Principal Amount of Loans Subject to Delinquent Principal or Interest 0    
Deductions during the year:      
Balance at the close of year [1] $ 0    
[1] Mortgages held by NNN and its subsidiaries for federal income tax purposes for the year ended December 31, 2024 and 2023 were $454 and $1,002, respectively
[2] The following shows the changes in the carrying amounts of mortgage loans during the years ended December 31
[3] In accordance with FASB ASC Topic 326, Financial Instruments - Credit Losses, NNN recorded an allowance for an estimated expected lifetime credit loss on its mortgage receivables based on the fair value of the collateral and a 15-year historical collectability trend analysis.