Segment Information - Schedule of Segment Reporting Information 2 (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Segment Reporting Information [Line Items]
Net loss	$ (15,420)	$ (67,958)	$ (47,490)	$ (101,346)
Advisory and administrative fees	3,976	3,469	10,665	8,707
Corporate general and administrative expenses	2,843		8,873
Income tax expense	700	330	1,553	1,444
Depreciation and amortization	4,510	3,820	11,408	10,928
Interest expense	8,288		20,670
Non-operating property investment revenue	(9,050)		(26,685)
Realized (gains) losses from non-real estate investments	1	939	21,876	718
Change in unrealized (gains) losses from non-real estate investments	885	61,626	(2,251)	89,598
Equity in (income) losses of unconsolidated equity method ventures	(400)	369	558	23
Impairment loss	6,134	0	6,134	0
NOI	2,467		5,311
NexPoint Diversified Real Estate Trust
Segment Reporting Information [Line Items]
Net loss	(11,247)	(67,958)	(39,230)	(101,346)
Advisory and administrative fees	3,720		10,140
Corporate general and administrative expenses	1,646		7,107
Income tax expense	748		1,583
Depreciation and amortization	3,150		8,694
Interest expense	4,461		13,371
Non-operating property investment revenue	(8,126)		(25,386)
Realized (gains) losses from non-real estate investments	1		21,876
Change in unrealized (gains) losses from non-real estate investments	885		(2,251)
Equity in (income) losses of unconsolidated equity method ventures	(400)		558
Impairment loss	0		0
NOI	(5,161)		(3,538)
NexPoint Hospitality Trust
Segment Reporting Information [Line Items]
Net loss	(4,173)	$ 0	(8,260)	$ 0
Advisory and administrative fees	256		525
Corporate general and administrative expenses	1,197		1,766
Income tax expense	(48)		(30)
Depreciation and amortization	1,360		2,714
Interest expense	3,827		7,299
Non-operating property investment revenue	(925)		(1,299)
Realized (gains) losses from non-real estate investments	0		0
Change in unrealized (gains) losses from non-real estate investments	0		0
Equity in (income) losses of unconsolidated equity method ventures	0		0
Impairment loss	6,134		6,134
NOI	$ 7,628		$ 8,849