Fair Value of Financial Instruments - Schedule of Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation (Details) - Equity Securities $ in Thousands	6 Months Ended
	Jun. 30, 2026 USD ($)
NexPoint Storage Partners
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	$ 24,761
Additions	1,500
Change in Unrealized Gains/(Losses)	1,117
Ending Balance	27,378
Private REIT
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	24,343
Additions	0
Change in Unrealized Gains/(Losses)	4,949
Ending Balance	29,292
IQHQ Inc.
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	141,186
Additions	0
Change in Unrealized Gains/(Losses)	(8,646)
Ending Balance	132,540
IQHQ Inc. \| Series D Preferred Stock
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	18,617
Additions	0
Change in Unrealized Gains/(Losses)	26
Ending Balance	18,643
IQHQ Inc. \| Series E Preferred Stock
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	136,115
Additions	0
Change in Unrealized Gains/(Losses)	82
Ending Balance	136,197
FREMF 2020-KF81 C
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	4,005
Additions	0
Change in Unrealized Gains/(Losses)	(557)
Ending Balance	3,448
NSP \| Series G Preferred Stock
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Beginning Balance	3,161
Additions	230
Change in Unrealized Gains/(Losses)	0
Ending Balance	$ 3,391