Investments in Joint Ventures - Investments in Multifamily Joint Ventures (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Schedule of Equity Method Investments [Line Items]
Total assets	$ 711,856	$ 709,166
Capital – Third Parties	419,132	414,520
Total liabilities and equity	711,856	709,166
Buzzard Point Sponsor, LLC
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	0	0
Cash and restricted cash	0	0
Unrealized rents & receivables	0	0
Deferred costs	4,804	4,652
Total assets	4,804	4,652
Secured notes payable	0	0
Other liabilities	0	0
Capital – FRP	2,402	2,326
Capital – Third Parties	2,402	2,326
Total liabilities and equity	4,804	4,652
Bryant Street Partnerships
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	186,770	187,616
Cash and restricted cash	6,213	7,543
Unrealized rents & receivables	6,975	6,737
Deferred costs	1,181	738
Total assets	201,139	202,634
Secured notes payable	110,553	107,084
Other liabilities	2,873	3,129
Capital – FRP	66,327	69,779
Capital – Third Parties	21,386	22,642
Total liabilities and equity	201,139	202,634
Estero Partnership
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	37,495	35,576
Cash and restricted cash	1,025	3,076
Unrealized rents & receivables	0	0
Deferred costs	0	0
Total assets	38,520	38,652
Secured notes payable	16,000	16,000
Other liabilities	0	0
Capital – FRP	3,600	3,600
Capital – Third Parties	18,920	19,052
Total liabilities and equity	38,520	38,652
The Verge Partnership
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	126,070	128,154
Cash and restricted cash	2,240	1,323
Unrealized rents & receivables	381	403
Deferred costs	61	293
Total assets	128,752	130,173
Secured notes payable	68,116	72,691
Other liabilities	1,396	1,344
Capital – FRP	36,294	34,391
Capital – Third Parties	22,946	21,747
Total liabilities and equity	128,752	130,173
Greenville Partnerships
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	97,504	95,911
Cash and restricted cash	2,625	2,000
Unrealized rents & receivables	110	127
Deferred costs	91	185
Total assets	100,330	98,223
Secured notes payable	81,687	66,434
Other liabilities	1,561	3,867
Capital – FRP	5,565	10,450
Capital – Third Parties	11,517	17,472
Total liabilities and equity	100,330	98,223
Multifamily JV’s
Schedule of Equity Method Investments [Line Items]
Investments in real estate, net	447,839	447,257
Cash and restricted cash	12,103	13,942
Unrealized rents & receivables	7,466	7,267
Deferred costs	6,137	5,868
Total assets	473,545	474,334
Secured notes payable	276,356	262,209
Other liabilities	5,830	8,340
Capital – FRP	114,188	120,546
Capital – Third Parties	77,171	83,239
Total liabilities and equity	$ 473,545	$ 474,334