BUSINESS SEGMENT DATA - Summary of Operations in Different Segments (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
BUSINESS SEGMENT DATA
Total Revenues	$ 109,119	$ 82,320	$ 70,272
General and Corporate Expense	(58,422)	(41,754)	(31,783)
Provision for Impairment	(1,556)	0	(17,599)
Gain (Loss) on Disposition of Assets	7,543	(7,042)	28,316
Loss on Extinguishment of Debt			(3,431)
Total Operating Income	26,506	10,667	23,345
Depreciation and Amortization	44,173	28,855	20,581
Capital Expenditures	135,818	385,165	256,854
General and Corporate Expense
BUSINESS SEGMENT DATA
Depreciation and Amortization	66	56	20
Capital Expenditures	261	42	34
Income Properties
BUSINESS SEGMENT DATA
Total Revenues	96,663	68,857	50,679
Gross Profit	68,208	48,493	36,864
Provision for Impairment		0	0
Income Properties | Operating Segments
BUSINESS SEGMENT DATA
Depreciation and Amortization	44,107	28,799	20,561
Capital Expenditures	102,688	331,754	256,456
Management Fee Income
BUSINESS SEGMENT DATA
Total Revenues	4,388	3,829	3,305
Gross Profit	4,388	3,829	3,305
Interest Income From Commercial Loans and Investments
BUSINESS SEGMENT DATA
Total Revenues	4,084	4,172	2,861
Gross Profit	4,084	4,172	2,861
Provision for Impairment	(600)	0	0
Interest Income From Commercial Loans and Investments | Operating Segments
BUSINESS SEGMENT DATA
Capital Expenditures	32,869	53,369	364
Real Estate Operations
BUSINESS SEGMENT DATA
Total Revenues	3,984	5,462	13,427
Gross Profit	$ 2,261	$ 2,969	$ 4,812