SCHEDULE IV - MORTGAGE LOANS - Schedule of Mortgage Loans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	12.00%
Prior Liens	$ 330,865
Face Amount	133,837
Carrying Value	$ 133,837	$ 129,304	$ 129,726	$ 123,556
ABC Land and Development, Inc.
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Prior Liens	$ 0
Face Amount	4,408
Carrying Value	$ 4,408
ABC Land and Development, Inc. | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
ABC Paradise, LLC
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Prior Liens	$ 0
Face Amount	1,210
Carrying Value	$ 1,210
ABC Paradise, LLC | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Autumn Breeze
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Prior Liens	$ 24,181
Face Amount	2,157
Carrying Value	$ 2,157
Autumn Breeze | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Bellwether Ridge
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Prior Liens	$ 17,607
Face Amount	3,798
Carrying Value	$ 3,798
Bellwether Ridge | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Cascades at Spring Street
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Prior Liens	$ 407
Face Amount	180
Carrying Value	$ 180
Cascades at Spring Street | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Dominion at Mercer Crossing
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Prior Liens	$ 38,564
Face Amount	6,354
Carrying Value	$ 6,354
Dominion at Mercer Crossing | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Forest Pines
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Prior Liens	$ 25,701
Face Amount	6,472
Carrying Value	$ 6,472
Forest Pines | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Inwood on the Park
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Prior Liens	$ 25,477
Face Amount	20,325
Carrying Value	$ 20,325
Inwood on the Park | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Kensington Park
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Prior Liens	$ 15,364
Face Amount	10,262
Carrying Value	$ 10,262
Kensington Park | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Lake Shore Villas
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Prior Liens	$ 25,615
Face Amount	6,000
Carrying Value	$ 6,000
Lake Shore Villas | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Legacy Pleasant Grove
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	12.00%
Prior Liens	$ 0
Face Amount	496
Carrying Value	$ 496
Legacy Pleasant Grove | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	12.00%
McKinney Ranch
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	6.00%
Prior Liens	$ 0
Face Amount	3,926
Carrying Value	$ 3,926
McKinney Ranch | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	6.00%
Ocean Estates II
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Prior Liens	$ 1,700
Face Amount	3,615
Carrying Value	$ 3,615
Ocean Estates II | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
One Realco Land Holding, Inc.
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Prior Liens	$ 0
Face Amount	1,728
Carrying Value	$ 1,728
One Realco Land Holding, Inc. | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Parc at Ingleside
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Prior Liens	$ 24,513
Face Amount	3,759
Carrying Value	$ 3,759
Parc at Ingleside | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Parc at Opelika Phase II
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	10.00%
Prior Liens	$ 22,680
Face Amount	3,190
Carrying Value	$ 3,190
Parc at Windmill Farms
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Prior Liens	$ 34,683
Face Amount	7,886
Carrying Value	$ 7,886
Parc at Windmill Farms | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Phillips Foundation for Better Living, Inc.
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	12.00%
Prior Liens	$ 0
Face Amount	182
Carrying Value	$ 182
Phillips Foundation for Better Living, Inc. | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	12.00%
Plaza at Chase Oaks
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Prior Liens	$ 9,131
Face Amount	11,772
Carrying Value	$ 11,772
Plaza at Chase Oaks | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Plum Tree
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Prior Liens	$ 17,318
Face Amount	1,767
Carrying Value	$ 1,767
Plum Tree | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Polk County Land
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Prior Liens	$ 0
Face Amount	3,000
Carrying Value	$ 3,000
Riverview on the Park Land, LLC
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Prior Liens	$ 0
Face Amount	1,045
Carrying Value	$ 1,045
Riverview on the Park Land, LLC | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	9.50%
Spartan Land
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	6.00%
Prior Liens	$ 0
Face Amount	5,907
Carrying Value	$ 5,907
Spartan Land | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	6.00%
Spyglass of Ennis
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Prior Liens	$ 22,214
Face Amount	5,179
Carrying Value	$ 5,179
Spyglass of Ennis | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Steeple Crest
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Prior Liens	$ 11,057
Face Amount	6,498
Carrying Value	$ 6,498
Steeple Crest | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.00%
Timbers at The Park
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Prior Liens	$ 13,156
Face Amount	11,173
Carrying Value	$ 11,173
Timbers at The Park | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Tuscany Villas
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%
Prior Liens	$ 1,497
Face Amount	1,548
Carrying Value	$ 1,548
Tuscany Villas | Notes Receivable
SEC Schedule, 12-29, Real Estate Companies, Investment in Mortgage Loans on Real Estate [Line Items]
Interest Rate	5.38%