v3.26.1
Investments in Joint Ventures - Schedule of Investments in Unconsolidated Joint Ventures (Details) - USD ($)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership $ 762,313   $ 762,313   $ 735,145
Profit (Loss) Of the Partnership (344) $ 624 (1,265) $ 2,258  
The Company's Share of Profit (Loss) of the Partnership (2,419) $ (2,379) (5,034) $ (4,410)  
Total Assets of The Partnership          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 704,400   704,400    
Profit (Loss) Of the Partnership     (8,816)    
Brooksville Quarry, LLC          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 14,393   14,393   14,404
Profit (Loss) Of the Partnership     (50)    
BC FRP Realty, LLC          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 23,772   23,772   23,759
Profit (Loss) Of the Partnership     354    
Buzzard Point Sponsor, LLC          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 5,476   5,476   5,138
Profit (Loss) Of the Partnership     0    
Bryant Street Partnerships          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 182,630   182,630   186,189
Profit (Loss) Of the Partnership     (4,030)    
Industrial Partnerships          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 127,968   127,968   119,975
Profit (Loss) Of the Partnership     (1,618)    
Lending ventures          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 16,430   16,430   11,318
Profit (Loss) Of the Partnership     0    
Estero Partnership          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 90,216   90,216   67,484
Profit (Loss) Of the Partnership     0    
The Verge Partnership          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 120,187   120,187   122,194
Profit (Loss) Of the Partnership     (2,261)    
Greenville Partnerships          
Schedule of Equity Method Investments [Line Items]          
Total Assets of The Partnership 123,328   123,328   $ 111,058
Profit (Loss) Of the Partnership     (1,211)    
The Company's Share of Profit (Loss) of the Partnership          
Schedule of Equity Method Investments [Line Items]          
The Company's Total Investment $ 157,286   157,286    
The Company's Share of Profit (Loss) of the Partnership     $ (5,034)    
Brooksville Quarry, LLC          
Schedule of Equity Method Investments [Line Items]          
FRP Ownership 50.00%   50.00%    
The Company's Total Investment $ 7,502   $ 7,502    
The Company's Share of Profit (Loss) of the Partnership     $ (25)    
BC FRP Realty, LLC          
Schedule of Equity Method Investments [Line Items]          
FRP Ownership 50.00%   50.00%    
The Company's Total Investment $ 5,228   $ 5,228    
The Company's Share of Profit (Loss) of the Partnership     $ 177    
Buzzard Point Sponsor, LLC          
Schedule of Equity Method Investments [Line Items]          
FRP Ownership 50.00%   50.00%    
The Company's Total Investment $ 2,738   $ 2,738    
The Company's Share of Profit (Loss) of the Partnership     $ 0    
Bryant Street Partnerships          
Schedule of Equity Method Investments [Line Items]          
FRP Ownership 72.10%   72.10%    
The Company's Total Investment $ 56,628   $ 56,628    
The Company's Share of Profit (Loss) of the Partnership     $ (3,155)    
Industrial Partnerships          
Schedule of Equity Method Investments [Line Items]          
FRP Ownership 9.63%   9.63%    
The Company's Total Investment $ 8,323   $ 8,323    
The Company's Share of Profit (Loss) of the Partnership     (159)    
Lending ventures          
Schedule of Equity Method Investments [Line Items]          
The Company's Total Investment $ 19,693   19,693    
The Company's Share of Profit (Loss) of the Partnership     $ 0    
Estero Partnership          
Schedule of Equity Method Investments [Line Items]          
FRP Ownership 16.00%   16.00%    
The Company's Total Investment $ 11,580   $ 11,580    
The Company's Share of Profit (Loss) of the Partnership     $ 0    
The Verge Partnership          
Schedule of Equity Method Investments [Line Items]          
FRP Ownership 61.37%   61.37%    
The Company's Total Investment $ 32,838   $ 32,838    
The Company's Share of Profit (Loss) of the Partnership     $ (1,388)    
Greenville Partnerships          
Schedule of Equity Method Investments [Line Items]          
FRP Ownership 58.94%   58.94%    
The Company's Total Investment $ 12,756   $ 12,756    
The Company's Share of Profit (Loss) of the Partnership     $ (484)