v3.26.1
Related Party Transactions - Additional Information 1 (Details)
 3 Months Ended 6 Months Ended 12 Months Ended
Mar. 30, 2026
USD ($)
Jan. 16, 2026
USD ($)
Oct. 08, 2025
USD ($)
shares
May 29, 2020
USD ($)
$ / shares
shares
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
shares
Jun. 30, 2025
USD ($)
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         $ 2,252,000 $ 1,563,000 $ 4,465,000 $ 2,974,000                
Series G Preferred Stock                                
Related Party Transaction [Line Items]                                
Treasury stock shares acquired (in shares) | shares     3,178,286       3,409,683                  
Repurchase of common stock     $ 3,200,000                          
Facility                                
Related Party Transaction [Line Items]                                
Outstanding face amount         $ 836,628,000   $ 836,628,000       $ 771,203,000          
Weighted average interest rate         6.34%   6.34%       5.25%          
Debt outstanding amount         $ 830,125,000   $ 830,125,000       $ 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]                                
Guarantor obligations, current carrying value         16,800,000   16,800,000                  
Outstanding face amount $ 1,300,000       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                            
Maximum commitment amount             40,000,000                  
Unfunded commitment         16,800,000   16,800,000                  
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         $ 6,500,000
Weighted average interest rate         7.50%   7.50%       7.50%         7.50%
Debt outstanding amount         $ 6,500,000   $ 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%   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         $ 16,000,000   $ 16,000,000                  
Guaranteed amount         $ 13,700,000   $ 13,700,000                  
Severable liability percentage         85.90%   85.90%