v3.26.3
Related Party Transactions - Additional Information (Details) - USD ($)
 3 Months Ended 9 Months Ended
Jun. 05, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Dec. 31, 2025
Related Party Transaction [Line Items]            
Prepaid and other assets [1]   $ 21,767,000   $ 21,767,000   $ 4,852,000
Interest Rate   3.75%   3.75%    
Proceeds from repayment of loans, held-for-investment   $ 7,400,000   $ 7,404,000 [2]    
NexPoint Real Estate Advisors, L.P            
Related Party Transaction [Line Items]            
Percentage of annual advisory, paid monthly       1.00%    
Percentage of annual administrative fee, paid monthly       0.20%    
Advisory and administrative fees on contributed assets       $ 5,400,000    
Advisory and administrative fees percentage       1.20%    
Total advisory and administrative fees   7,300,000 $ 7,200,000 $ 21,900,000 $ 21,200,000  
Advisory and administrative fees paid   1,800,000 1,800,000 5,400,000 5,200,000  
Advisory and administrative fees waived   5,500,000 5,400,000 $ 16,500,000 16,000,000  
NexPoint Real Estate Advisors, L.P | Maximum            
Related Party Transaction [Line Items]            
Corporate general and administrative expenses and advisory and administrative fees percentage       1.50%    
NLMF Holdco LLC            
Related Party Transaction [Line Items]            
Equity interest owned       10.00%    
Prepaid and other assets   1,200,000   $ 1,200,000   $ 900,000
Net income equity in earnings of affiliate   100,000 100,000 300,000 200,000  
NLMF Leaseco, LLC            
Related Party Transaction [Line Items]            
Net income equity in earnings of affiliate   1,300,000 900,000 3,500,000 2,300,000  
Expenses incurred for fiber internet service included in property operating expenses   1,400,000 900,000 3,900,000 2,300,000  
NexBank Capital            
Related Party Transaction [Line Items]            
Recognized interest income   500,000 $ 0 $ 700,000 $ 0  
NexBank Capital | Director and Officer            
Related Party Transaction [Line Items]            
Indirect ownership limited partnership interests in parent of adviser       100.00%    
General partnership interests in parent of adviser       100.00%    
NexBank Capital | Loan Purchase And Sale Agreement            
Related Party Transaction [Line Items]            
Loan purchased, amount $ 22,100,000          
Interest Rate 10.00%          
Recognized interest income       $ 700,000    
Payment terms payable monthly on an interest-only basis through January 2027 and thereafter with scheduled principal amortization          
Maturity Date Jan. 14, 2028          
Option to extend term 364-day extension option          
Event of a material breach, description       In the event of a material breach of such representations and warranties that is not cured within 30 days of notice, subject to the limited ability to extend for an additional 30 days, NexBank Capital is obligated to repurchase the Waterford Loan from the OP at a repurchase price equal to 100% of the outstanding principal balance under the Waterford Loan, plus accrued interest. Claims for breach of representations and warranties under the Purchase Agreement survive for 360 days after the closing date.    
Exit fee 0.50%          
NexBank Capital | Notes Receivable | Loan Purchase And Sale Agreement            
Related Party Transaction [Line Items]            
Prepaid and other assets   14,700,000   $ 14,700,000    
Interest receivable   $ 0   $ 0    
[1] Includes $14.7 million and $0.0 million note receivable from a related party as of September 30, 2026 and December 31, 2025, respectively (see Note 9).
[2] See related party Note 9.