Investments in Joint Ventures - Schedule of Investments in Joint Ventures (Details) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Total assets	$ 735,145	$ 728,485	$ 709,166
Capital – Third Parties	428,513	423,103
Total liabilities and equity	735,145	728,485
Industrial Partnerships
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	119,215
Cash and restricted cash	760
Unrealized rents & receivables	0
Deferred costs	0
Total assets	119,975
Secured notes payable	46,843
Other liabilities	6,163
Capital – FRP	7,239
Capital – Third Parties	59,730
Total liabilities and equity	119,975
Brooksville Quarry, LLC
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	14,350	14,354
Cash and restricted cash	53	143
Unrealized rents & receivables	0	0
Deferred costs	1	1
Total assets	14,404	14,498
Secured notes payable	0	0
Other liabilities	0	0
Capital – FRP	7,530	7,579
Capital – Third Parties	6,874	6,919
Total liabilities and equity	14,404	14,498
BC FRP Realty, LLC
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	21,539	20,956
Cash and restricted cash	1,347	144
Unrealized rents & receivables	548	517
Deferred costs	325	313
Total assets	23,759	21,930
Secured notes payable	13,731	10,315
Other liabilities	288	285
Capital – FRP	4,870	5,665
Capital – Third Parties	4,870	5,665
Total liabilities and equity	23,759	21,930
Lending ventures
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	11,318	16,007
Cash and restricted cash	0	0
Unrealized rents & receivables	0	0
Deferred costs	0	0
Total assets	11,318	16,007
Secured notes payable	(3,484)	(10,157)
Other liabilities	0	0
Capital – FRP	14,802	26,164
Capital – Third Parties	0	0
Total liabilities and equity	11,318	16,007
Total Multifamily
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	461,932	439,691
Cash and restricted cash	15,886	11,066
Unrealized rents & receivables	7,484	7,216
Deferred costs	6,761	6,631
Total assets	492,063	464,604
Secured notes payable	267,358	272,155
Other liabilities	11,863	7,349
Capital – FRP	110,469	109,031
Capital – Third Parties	102,373	76,069
Total liabilities and equity	492,063	464,604
Grand Total
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	628,354	491,008
Cash and restricted cash	18,046	11,353
Unrealized rents & receivables	8,032	7,733
Deferred costs	7,087	6,945
Total assets	661,519	517,039
Secured notes payable	324,448	272,313
Other liabilities	18,314	7,634
Capital – FRP	144,910	148,439
Capital – Third Parties	173,847	88,653
Total liabilities and equity	$ 661,519	$ 517,039