Revenues - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Disaggregation of Revenue [Line Items]
Revenue from customers	$ 12,959	$ 16,530	$ 32,737	$ 76,620
Revenues	13,488	17,013	34,118	78,140
Unallocated
Disaggregation of Revenue [Line Items]
Revenue from customers		115		356
Revenues		115		356
Land sales
Disaggregation of Revenue [Line Items]
Revenue from customers	(12)	372	70	1,214
Land sales \| Unallocated
Disaggregation of Revenue [Line Items]
Revenue from customers		0		0
Management services
Disaggregation of Revenue [Line Items]
Revenue from customers	12,826	16,030	32,336	75,035
Management services \| Unallocated
Disaggregation of Revenue [Line Items]
Revenue from customers		115		356
Operating properties
Disaggregation of Revenue [Line Items]
Revenue from customers	145	128	331	371
Operating properties leasing revenues	529	483	1,381	1,520
Operating properties \| Unallocated
Disaggregation of Revenue [Line Items]
Revenue from customers		0		0
Operating properties leasing revenues		0		0
Valencia
Disaggregation of Revenue [Line Items]
Revenue from customers	133	500	401	1,585
Revenues	486	812	1,260	2,598
Valencia \| Land sales
Disaggregation of Revenue [Line Items]
Revenue from customers	(12)	372	70	1,214
Valencia \| Management services
Disaggregation of Revenue [Line Items]
Revenue from customers	0	0	0	0
Valencia \| Operating properties
Disaggregation of Revenue [Line Items]
Revenue from customers	145	128	331	371
Operating properties leasing revenues	353	312	859	1,013
San Francisco
Disaggregation of Revenue [Line Items]
Revenue from customers	0	0	0	0
Revenues	176	171	522	507
San Francisco \| Land sales
Disaggregation of Revenue [Line Items]
Revenue from customers	0	0	0	0
San Francisco \| Management services
Disaggregation of Revenue [Line Items]
Revenue from customers	0	0	0	0
San Francisco \| Operating properties
Disaggregation of Revenue [Line Items]
Revenue from customers	0	0	0	0
Operating properties leasing revenues	176	171	522	507
Great Park
Disaggregation of Revenue [Line Items]
Revenue from customers	9,432	15,915	28,942	74,679
Revenues	9,432	15,915	28,942	74,679
Great Park \| Unallocated
Disaggregation of Revenue [Line Items]
Revenues	(273,072)	(61,512)	(630,717)	(293,593)
Great Park \| Land sales
Disaggregation of Revenue [Line Items]
Revenue from customers	0	0	0	0
Great Park \| Management services
Disaggregation of Revenue [Line Items]
Revenue from customers	9,432	15,915	28,942	74,679
Great Park \| Operating properties
Disaggregation of Revenue [Line Items]
Revenue from customers	0	0	0	0
Operating properties leasing revenues	0	$ 0	0	$ 0
Hearthstone
Disaggregation of Revenue [Line Items]
Revenue from customers	3,394		3,394
Revenues	3,394		3,394
Hearthstone \| Land sales
Disaggregation of Revenue [Line Items]
Revenue from customers	0		0
Hearthstone \| Management services
Disaggregation of Revenue [Line Items]
Revenue from customers	3,394		3,394
Hearthstone \| Operating properties
Disaggregation of Revenue [Line Items]
Revenue from customers	0		0
Operating properties leasing revenues	$ 0		$ 0