Segment Reporting (Schedule of Segments) (Details) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2022 USD ($)	Sep. 30, 2021 USD ($)	Sep. 30, 2022 USD ($) segment	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Segment Profit (Loss)
Number of reportable segments | segment				4
Revenues		$ 47,757	$ 143,632	$ 127,773	$ 257,871
Earnings from equity method investments		57,797	87,795	102,222	110,661
Income from sales of real estate		951	25,611	1,443	26,319
Total revenue and other earnings		106,505	257,038	231,438	394,851
Other expense		(4,171)	(894)	(6,624)	(1,358)
Allocated interest expense		(22,664)	(28,695)	(76,056)	(86,145)
Allocated general and administrative		(14,584)	(14,120)	(41,130)	(45,654)
Segment profit (loss)		32,104	112,580	12,922	80,783
Other significant items:
Provision for (recovery of) loan losses		(157)	(1,610)	22,556	(7,411)
Provision for (recovery of) losses on net investment in leases		(380)	(315)	0	465
Impairment of assets		0	421	1,768	679
Depreciation and amortization		1,290	1,742	3,985	5,715
Capitalized expenditures		5,405	7,537	16,468	17,337
Segment assets
Real estate, net	[1]	89,144		89,144		$ 92,150
Real estate available and held for sale	[1]	1,283		1,283		301
Total real estate	[1]	90,427		90,427		92,451
Real estate and other assets available and held for sale and classified as discontinued operations	[1],[2]	11,925		11,925		2,299,711
Net investment in leases		0		0		43,215	[1]
Land and development, net	[1]	248,246		248,246		286,810
Loans receivable and other lending investments, net		176,623		176,623		332,844
Loan receivable held for sale	[1]					43,215
Other investments	[1]	1,605,268		1,605,268		1,297,281
Total portfolio assets		2,132,489		2,132,489		4,395,527
Cash and other assets		1,389,643		1,389,643		445,007
Total assets	[1]	3,522,132		3,522,132		4,840,534
Stock-based compensation expense		(374)	3,001	(30,724)	23,300
Operating lease income
Segment Profit (Loss)
Revenues		3,424	3,732	9,715	13,456
Interest income
Segment Profit (Loss)
Revenues		2,093	6,972	11,262	24,846
Interest income from sales-type leases
Segment Profit (Loss)
Revenues		129	526	861	683
Other income
Segment Profit (Loss)
Revenues		27,024	39,033	51,545	60,950
Land development revenue
Segment Profit (Loss)
Revenues		15,087	93,369	54,390	157,936
Cost of sales expense		(16,778)	(87,380)	(55,369)	(147,507)
Real estate expense
Segment Profit (Loss)
Cost of sales expense		(16,204)	(13,369)	(39,337)	(33,404)
Operating Segments | Net Lease
Segment Profit (Loss)
Earnings from equity method investments		43,525	73,475	76,563	94,590
Income from sales of real estate		951		1,443
Total revenue and other earnings		50,109	78,257	94,127	106,855
Other expense		489	(210)	(503)	(210)
Allocated interest expense		(13,049)	(15,691)	(42,426)	(44,582)
Allocated general and administrative		(5,302)	(5,487)	(14,156)	(17,544)
Segment profit (loss)		31,521	56,778	35,657	43,957
Other significant items:
Provision for (recovery of) losses on net investment in leases		(380)	(315)		465
Segment assets
Real estate and other assets available and held for sale and classified as discontinued operations		11,925		11,925		2,299,711
Net investment in leases						43,215
Loan receivable held for sale						43,215
Other investments		1,525,270		1,525,270		1,186,162
Total portfolio assets		1,537,195		1,537,195		3,572,303
Operating Segments | Net Lease | Interest income
Segment Profit (Loss)
Revenues			651	75	968
Operating Segments | Net Lease | Interest income from sales-type leases
Segment Profit (Loss)
Revenues		129	526	861	683
Operating Segments | Net Lease | Other income
Segment Profit (Loss)
Revenues		5,504	3,605	15,185	10,614
Operating Segments | Net Lease | Real estate expense
Segment Profit (Loss)
Cost of sales expense		(726)	(91)	(1,385)	(562)
Operating Segments | Real Estate Finance
Segment Profit (Loss)
Earnings from equity method investments		1,329	872	3,112	2,092
Total revenue and other earnings		6,569	8,288	17,484	27,215
Other expense		(78)	(270)	(237)	(422)
Allocated interest expense		(1,713)	(3,331)	(7,049)	(11,737)
Allocated general and administrative		(1,190)	(958)	(3,540)	(3,659)
Segment profit (loss)		3,588	3,729	6,658	11,397
Other significant items:
Provision for (recovery of) loan losses		(157)	(1,610)	22,556	(7,411)
Segment assets
Loans receivable and other lending investments, net		176,623		176,623		332,844
Other investments		24,349		24,349		48,862
Total portfolio assets		200,972		200,972		381,706
Operating Segments | Real Estate Finance | Interest income
Segment Profit (Loss)
Revenues		2,093	6,321	11,187	23,878
Operating Segments | Real Estate Finance | Other income
Segment Profit (Loss)
Revenues		3,147	1,095	3,185	1,245
Operating Segments | Operating Properties
Segment Profit (Loss)
Earnings from equity method investments		11,515	1,129	15,233	(5,553)
Income from sales of real estate			25,611		26,319
Total revenue and other earnings		27,052	47,245	47,081	57,102
Allocated interest expense		(1,122)	(1,641)	(3,602)	(5,714)
Allocated general and administrative		(751)	(473)	(1,854)	(1,797)
Segment profit (loss)		14,167	35,947	16,481	30,353
Other significant items:
Impairment of assets			421	1,750	679
Depreciation and amortization		923	1,385	2,878	4,592
Capitalized expenditures		104	121	644	610
Segment assets
Real estate, net		89,144		89,144		92,150
Real estate available and held for sale		1,283		1,283		301
Total real estate		90,427		90,427		92,451
Other investments		33,808		33,808		43,252
Total portfolio assets		124,235		124,235		135,703
Operating Segments | Operating Properties | Operating lease income
Segment Profit (Loss)
Revenues		3,340	3,636	9,396	13,177
Operating Segments | Operating Properties | Other income
Segment Profit (Loss)
Revenues		12,197	16,869	22,452	23,159
Operating Segments | Operating Properties | Real estate expense
Segment Profit (Loss)
Cost of sales expense		(11,012)	(9,184)	(25,144)	(19,238)
Operating Segments | Land and Development
Segment Profit (Loss)
Earnings from equity method investments		850	10,836	4,516	15,456
Total revenue and other earnings		18,483	107,490	64,322	179,565
Other expense		(218)	(64)	(538)	(64)
Allocated interest expense		(1,915)	(3,679)	(8,903)	(11,481)
Allocated general and administrative		(2,333)	(2,173)	(6,702)	(6,968)
Segment profit (loss)		(7,227)	10,100	(19,998)	(59)
Other significant items:
Depreciation and amortization		227	228	683	674
Capitalized expenditures		5,301	7,416	15,824	16,727
Segment assets
Land and development, net		248,246		248,246		286,810
Other investments						1,096
Total portfolio assets		248,246		248,246		287,906
Operating Segments | Land and Development | Operating lease income
Segment Profit (Loss)
Revenues		84	96	319	279
Operating Segments | Land and Development | Other income
Segment Profit (Loss)
Revenues		2,462	3,189	5,097	5,894
Operating Segments | Land and Development | Land development revenue
Segment Profit (Loss)
Revenues		15,087	93,369	54,390	157,936
Cost of sales expense		(16,778)	(87,380)	(55,369)	(147,507)
Operating Segments | Land and Development | Real estate expense
Segment Profit (Loss)
Cost of sales expense		(4,466)	(4,094)	(12,808)	(13,604)
Corporate/Other
Segment Profit (Loss)
Earnings from equity method investments		578	1,483	2,798	4,076
Total revenue and other earnings		4,292	15,758	8,424	24,114
Other expense		(4,364)	(350)	(5,346)	(662)
Allocated interest expense		(4,865)	(4,353)	(14,076)	(12,631)
Allocated general and administrative		(5,008)	(5,029)	(14,878)	(15,686)
Segment profit (loss)		(9,945)	6,026	(25,876)	(4,865)
Other significant items:
Impairment of assets				18
Depreciation and amortization		140	129	424	449
Segment assets
Other investments		21,841		21,841		17,909
Total portfolio assets		21,841		21,841		$ 17,909
Corporate/Other | Other income
Segment Profit (Loss)
Revenues		$ 3,714	$ 14,275	$ 5,626	$ 20,038

[1] Refer to Note 2 for details on the Company’s consolidated variable interest entities (“VIEs”).

[2] Refer to Note 3 - Net Lease Sale and Discontinued Operations.