v3.25.4
Borrowings - Additional Information (Detail) - BXINFRA Aggregator (CYM) L.P. [Member] - USD ($)
$ in Thousands
 12 Months Ended
Mar. 03, 2028
Jan. 26, 2026
Oct. 09, 2025
Dec. 31, 2025
Mar. 03, 2025
Debt Instrument [Line Items]          
Line of credit facility, maximum amount outstanding during period       $ 0  
First Unused Amount [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Unused Borrowing Capacity, Description       The “First Unused Amount” is zero for the first three months the Brentwood Credit Facility is outstanding; thereafter, the amount is generally equal to a varying percentage of the unused aggregate commitment amount, less total borrowings outstanding.  
Line of credit facility, unused capacity, commitment fee percentage       1.00%  
Second Unused Amount [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Unused Borrowing Capacity, Description       The “Second Unused Amount” means an amount equal to the aggregate commitment less total borrowings outstanding less the First Unused Amount.  
Line of credit facility, unused capacity, commitment fee percentage       0.30%  
Brentwood Credit Facility [Member]          
Debt Instrument [Line Items]          
Line of credit facility, maximum borrowing capacity         $ 300,000
Debt Instrument, Description of Variable Rate Basis       one-month or three-month term Secured Overnight Financing Rate (“SOFR”) or the “base rate” (as defined in the Brentwood Credit Facility)), plus an applicable margin of 1.35% per annum. From and after March 3, 2028, the applicable margin for advances will increase by 0.30% per annum.  
Debt Instrument, Basis Spread on Variable Rate       0.30%  
Debt Instrument, Maturity Date Mar. 05, 2029        
Jutland Credit Facility [Member]          
Debt Instrument [Line Items]          
Line of credit facility, maximum borrowing capacity     $ 150,000    
Debt Instrument, Interest Rate, Effective Percentage     1.45%    
Line of credit facility, unused capacity, commitment fee percentage     0.45%    
Debt Instrument, Maturity Date     Oct. 09, 2029    
Line of credit facility, maximum amount outstanding during period       $ 70,000  
Line of credit facility, interest rate during period       5.15%  
Line Of Credit Facility Minimum Utilization Percentage Range One     40.00%    
Line Of Credit Facility Minimum Utilization Percentage Range Two     50.00%    
Line Of Credit Facility Minimum Utilization Percentage Range Three     65.00%    
Line Of Credit Facility Average Utilization Fee Percentage     1.45%    
Aggregator Credit Agreement [Member]          
Debt Instrument [Line Items]          
Line of credit facility, maximum amount outstanding during period       $ 0  
Subsequent Event [Member] | Aggregator Credit Agreement [Member]          
Debt Instrument [Line Items]          
Debt Instrument, Maturity Date   Jan. 26, 2028      
Debt Instrument Loan To Value Ratio Applicable Limit   22.50%      
Debt Instrument SOFR Spread Percentage   3.00%      
Debt Instrument Base Rate Spread Percentage   2.00%      
Debt Instrument Default Rate Increase Percentage   2.50%      
Subsequent Event [Member] | Aggregator Credit Agreement [Member] | Maximum [Member]          
Debt Instrument [Line Items]          
Line of credit facility, unused capacity, commitment fee percentage   0.65%      
Subsequent Event [Member] | Aggregator Credit Agreement [Member] | Minimum [Member]          
Debt Instrument [Line Items]          
Line of credit facility, unused capacity, commitment fee percentage   0.45%