v3.26.1
Related Party Transactions - Additional Information 1 (Details)
 3 Months Ended 12 Months Ended
Mar. 30, 2026
USD ($)
Jan. 16, 2026
USD ($)
Oct. 08, 2025
USD ($)
shares
May 29, 2020
USD ($)
$ / shares
shares
Mar. 31, 2026
USD ($)
shares
Mar. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Mar. 25, 2026
USD ($)
Dec. 31, 2025
USD ($)
Oct. 10, 2025
USD ($)
Dec. 08, 2023
USD ($)
Feb. 15, 2023
USD ($)
Dec. 08, 2022
USD ($)
Note
Oct. 18, 2022
USD ($)
Related Party Transaction [Line Items]                            
Payment for management fee         $ 0 $ 0                
Conversion ratio       1                    
Conversion of redeemable noncontrolling interests in the OP (in shares) | shares         9,601,008                  
Management fees         $ 2,213,000 $ 1,411,000                
Series G Preferred Stock                            
Related Party Transaction [Line Items]                            
Treasury stock shares acquired (in shares) | shares     3,178,286                      
Repurchase of common stock     $ 3,200,000                      
Facility                            
Related Party Transaction [Line Items]                            
Outstanding face amount         $ 665,235,000       $ 771,203,000          
Weighted average interest rate         5.23%       5.25%          
Debt outstanding amount         $ 664,983,000       $ 769,442,000          
NexPoint Storage Partners Operating Company, LLC                            
Related Party Transaction [Line Items]                            
Maximum borrowing capacity   $ 16,700,000                        
NSP Note | NexPoint Storage Partners Operating Company, LLC                            
Related Party Transaction [Line Items]                            
Outstanding face amount $ 1,300,000       1,300,000                  
Proceeds from debt 4,800,000                          
Debt instrument, interest rate, stated percentage   14.00%                        
Maturity date   Jan. 16, 2031                        
Debt outstanding amount         17,300,000                  
Maximum commitment amount         40,000,000                  
Unfunded commitment         17,300,000                  
NSP Note | NexPoint Storage Partners Operating Company, LLC | Maximum                            
Related Party Transaction [Line Items]                            
Outstanding face amount   $ 40,000,000                        
NSP Note | OSL                            
Related Party Transaction [Line Items]                            
Outstanding face amount               $ 7,500,000            
NSP Note | HFRO                            
Related Party Transaction [Line Items]                            
Outstanding face amount 2,500,000                          
NSP Note | NXDT                            
Related Party Transaction [Line Items]                            
Outstanding face amount 1,000,000                          
NSP Note | HGLB                            
Related Party Transaction [Line Items]                            
Outstanding face amount 1,300,000                          
NSP Note | NRES                            
Related Party Transaction [Line Items]                            
Outstanding face amount $ 100,000                          
Unsecured Financing | The 7.50 Percent Senior Notes Due 2027 | Facility                            
Related Party Transaction [Line Items]                            
Outstanding face amount         $ 6,500,000       $ 6,500,000         $ 6,500,000
Weighted average interest rate         7.50%       7.50%         7.50%
Debt outstanding amount         $ 6,500,000       $ 6,500,000          
Senior Notes | Senior Unsecured Notes Due 2026                            
Related Party Transaction [Line Items]                            
Outstanding face amount                   $ 45,000,000        
NexPoint Real Estate Advisors VII, L.P. | Maximum                            
Related Party Transaction [Line Items]                            
Percentage of direct payment of operating expense         2.50%                  
NexPoint Real Estate Finance Operating Partnership, L.P.                            
Related Party Transaction [Line Items]                            
Percentage of annual advisory, paid monthly         1.50%                  
NexPoint Real Estate Finance Operating Partnership, L.P. | Buffalo Pointe | Contribution Agreement                            
Related Party Transaction [Line Items]                            
Payments of distributions to affiliates       $ 10,000,000 $ 12,700,000   $ 2,700,000              
Partners' capital account, total sale of units (in shares) | shares       564,334                    
Book value of common stock per share (in dollars per share) | $ / shares       $ 17.72                    
Percentage of occupancy of multifamily property         95.50%                  
Percentage of preferred equity investment current interest rate         6.50%                  
Percentage of preferred equity investment deferred interest rate         4.50%                  
REIT Sub and the Co-Guarantors                            
Related Party Transaction [Line Items]                            
Number of promissory notes | Note                         2  
Guarantor obligations, current carrying value                       $ 49,200,000 $ 64,200,000  
Guarantor obligations, maximum exposure                         $ 97,600,000  
Guarantor obligations, paid down value                     $ 49,200,000 $ 15,000,000    
Accrued dividends         $ 15,100,000                  
Guaranteed amount         $ 13,000,000                  
Severable liability percentage         85.90%