Investments in Joint Ventures - Schedule of Investments in Joint Ventures (Details) - USD ($) $ in Thousands	Mar. 31, 2025	Dec. 31, 2024
Schedule of Equity Method Investments [Line Items]
Total assets	$ 717,123	$ 728,485
Capital – Third Parties	425,170	423,103
Total liabilities and equity	717,123	728,485
Brooksville Quarry, LLC
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	14,353	14,354
Cash and restricted cash	134	143
Unrealized rents & receivables	0	0
Deferred costs	7	1
Total assets	14,494	14,498
Secured notes payable	0	0
Other liabilities	22	0
Capital – FRP	7,566	7,579
Capital – Third Parties	6,906	6,919
Total liabilities and equity	14,494	14,498
BC FRP Realty, LLC
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	20,926	20,956
Cash and restricted cash	211	144
Unrealized rents & receivables	579	517
Deferred costs	249	313
Total assets	21,965	21,930
Secured notes payable	10,233	10,315
Other liabilities	258	285
Capital – FRP	5,737	5,665
Capital – Third Parties	5,737	5,665
Total liabilities and equity	21,965	21,930
Lending ventures
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	13,308	16,007
Cash and restricted cash	0	0
Unrealized rents & receivables	0	0
Deferred costs	0	0
Total assets	13,308	16,007
Secured notes payable	(9,852)	(10,157)
Other liabilities	0	0
Capital – FRP	23,160	26,164
Capital – Third Parties	0	0
Total liabilities and equity	13,308	16,007
Total Multifamily JV’s
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	436,884	439,691
Cash and restricted cash	9,049	11,066
Unrealized rents & receivables	7,129	7,216
Deferred costs	6,429	6,631
Total assets	459,491	464,604
Secured notes payable	272,216	272,155
Other liabilities	5,007	7,349
Capital – FRP	106,315	109,031
Capital – Third Parties	75,953	76,069
Total liabilities and equity	459,491	464,604
Grand Total
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	485,471	491,008
Cash and restricted cash	9,394	11,353
Unrealized rents & receivables	7,708	7,733
Deferred costs	6,685	6,945
Total assets	509,258	517,039
Secured notes payable	272,597	272,313
Other liabilities	5,287	7,634
Capital – FRP	142,778	148,439
Capital – Third Parties	88,596	88,653
Total liabilities and equity	$ 509,258	$ 517,039