v3.26.1
Related Party Transactions - Revolving Credit Facility, NXDT and Guaranties of NexPoint Storage Partners, Inc. Debt (Details)
$ in Millions
May 21, 2026
Nov. 21, 2025
May 15, 2025
Extension
Nov. 21, 2024
May 22, 2023
USD ($)
Feb. 15, 2023
USD ($)
Jun. 30, 2026
USD ($)
Oct. 04, 2024
USD ($)
Dec. 08, 2023
USD ($)
Dec. 08, 2022
USD ($)
Feb. 15, 2022
USD ($)
Related Party Transaction [Line Items]                      
Aggregate principal amount                     $ 39.3
Guarantor obligations, current carrying value             $ 16.0        
NexBank Revolver                      
Related Party Transaction [Line Items]                      
Number of extension terms | Extension     3                
NexBank | Revolving Credit Facility, NXDT Segment | Revolving Credit Facility                      
Related Party Transaction [Line Items]                      
Line of credit facility, maximum borrowing capacity         $ 20.0            
Line of credit facility, optional maximum borrowing capacity         $ 50.0            
Reference Rate         3.50%            
Extension term 6 months 6 months   6 months              
Long-term line of credit             8.8        
Citibank | Citi Loan Agreement                      
Related Party Transaction [Line Items]                      
Aggregate principal amount               $ 750.0      
REIT Sub and the Co-Guarantors                      
Related Party Transaction [Line Items]                      
Guarantor obligations, current carrying value             $ 16.0     $ 64.2  
Guarantor obligations, maximum exposure                   $ 97.6  
Guarantor obligation, severally liable, percentage             85.90%        
REIT Sub and the Co-Guarantors | Promissory Notes                      
Related Party Transaction [Line Items]                      
Extinguishment of debt, amount           $ 15.0          
REIT Sub and the Co-Guarantors | NSP                      
Related Party Transaction [Line Items]                      
Guarantor obligations, current carrying value           $ 49.2     $ 49.2