Related Party Transactions - Schedule of Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Related Party Transaction [Line Items]
Change in Unrealized Gain/(Loss)	$ (41,637)	$ (3,154)	$ (74,959)	$ 3,136
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)	3,462	(3)	4,981	(21,875)
Equity in income (loss)	190	196	(167)	(958)
NexPoint Real Estate Finance, Inc.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	28,958	28,812	28,958	28,812
Change in Unrealized Gain/(Loss)			(3,990)	(4,263)
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			2,100
Interest and Dividends				2,100
Total Income			(1,890)	(2,163)
NexPoint Storage Partners, Inc.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	50,844	67,256	50,844	67,256
Change in Unrealized Gain/(Loss)			(11,866)	(932)
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			0
Interest and Dividends				0
Total Income			(11,866)	(932)
NexPoint Residential Trust, Inc.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	3,288	3,719	3,288	3,719
Change in Unrealized Gain/(Loss)			(829)	481
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			100
Interest and Dividends				86
Total Income			(729)	567
NexPoint SFR Operating Partnership, L.P.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	14,081	20,824	14,081	20,824
Change in Unrealized Gain/(Loss)			236	11
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			668
Interest and Dividends				814
Total Income			904	825
NexPoint Storage Partners Operating Company, LLC
Related Party Transaction [Line Items]
Fair Value/Carrying Value	35,094	36,649	35,094	36,649
Change in Unrealized Gain/(Loss)			(7,915)	(508)
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			0
Interest and Dividends				0
Total Income			(7,915)	(508)
SFR WLIF III, LLC
Related Party Transaction [Line Items]
Fair Value/Carrying Value		6,948		6,948
Change in Unrealized Gain/(Loss)				0
Equity in income (loss)				370
Interest and Dividends				0
Total Income				370
Claymore Holdings, LLC
Related Party Transaction [Line Items]
Fair Value/Carrying Value	0	0	0	0
Change in Unrealized Gain/(Loss)			0	(110)
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			0
Interest and Dividends				0
Total Income			0	(110)
Allenby, LLC
Related Party Transaction [Line Items]
Fair Value/Carrying Value	0	0	0	0
Change in Unrealized Gain/(Loss)			456	(46)
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			3,493
Equity in income (loss)			0	0
Interest and Dividends			0
Interest and Dividends				0
Total Income			3,949	(46)
Haygood, LLC.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	0	0	0	0
Change in Unrealized Gain/(Loss)			31	0
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			(31)	0
Interest and Dividends			0
Interest and Dividends				0
Total Income			0	0
VineBrook Homes Operating Partnership, L.P.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	134,076	156,658	134,076	156,658
Change in Unrealized Gain/(Loss)			(17,631)	7,201
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			2,986
Interest and Dividends				2,943
Total Income			(14,645)	10,144
NexPoint Real Estate Finance Operating Partnership, L.P.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	67,145	66,804	67,145	66,804
Change in Unrealized Gain/(Loss)			(9,251)	(9,885)
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			4,869
Interest and Dividends				4,869
Total Income			(4,382)	(5,016)
NexPoint SFR Operating Partnership, L.P.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	33,322	46,310	33,322	46,310
Change in Unrealized Gain/(Loss)			(5,941)	(4,315)
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			1,310
Interest and Dividends				1,242
Total Income			(4,631)	(3,073)
NexAnnuity Holdings, Inc.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	72,719	67,181	72,719	67,181
Change in Unrealized Gain/(Loss)			0	0
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			2,824
Interest and Dividends				2,613
Total Income			2,824	2,613
NexPoint Storage Partners Operating Company, LLC
Related Party Transaction [Line Items]
Fair Value/Carrying Value	2,754	4,986	2,754	4,986
Change in Unrealized Gain/(Loss)			(11)	(15)
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			74
Interest and Dividends				134
Total Income			63	119
NexPoint SFR Operating Partnership, L.P.
Related Party Transaction [Line Items]
Fair Value/Carrying Value	0	500	0	500
Change in Unrealized Gain/(Loss)			0	0
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0	0
Interest and Dividends			7
Interest and Dividends				22
Total Income			7	22
NFRO SFR REIT, LLC
Related Party Transaction [Line Items]
Fair Value/Carrying Value	0		0
Change in Unrealized Gain/(Loss)			0
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0
Interest and Dividends			88
Total Income			88
NFRO SFR REIT, LLC
Related Party Transaction [Line Items]
Fair Value/Carrying Value	0		0
Change in Unrealized Gain/(Loss)			0
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0
Interest and Dividends			82
Total Income			82
Semiconductor DST
Related Party Transaction [Line Items]
Fair Value/Carrying Value	23,959		23,959
Change in Unrealized Gain/(Loss)			0
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0
Interest and Dividends			690
Total Income			690
Life Science II DST
Related Party Transaction [Line Items]
Fair Value/Carrying Value	9,600		9,600
Change in Unrealized Gain/(Loss)			0
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			0
Interest and Dividends			235
Total Income			235
Capital Acquisitions Partners, LLC
Related Party Transaction [Line Items]
Fair Value/Carrying Value	614		614
Change in Unrealized Gain/(Loss)			0
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			0
Equity in income (loss)			206
Interest and Dividends			0
Total Income			206
NREF OP IV, L.P.
Related Party Transaction [Line Items]
Fair Value/Carrying Value		5,900		5,900
Change in Unrealized Gain/(Loss)				0
Equity in income (loss)				0
Interest and Dividends				96
Total Income				96
Affiliates of the Advisor
Related Party Transaction [Line Items]
Fair Value/Carrying Value	$ 476,454	$ 512,547	476,454	512,547
Change in Unrealized Gain/(Loss)			(56,711)	(12,381)
Realized gains (losses) ($3,462, $0, $3,462 and $0 with related parties, respectively)			3,462
Equity in income (loss)			206	370
Interest and Dividends			16,033
Interest and Dividends				14,919
Total Income			$ (37,010)	$ 2,908