v3.26.1
Commitments and Contingencies - Additional Information (Detail)
$ in Thousands, € in Millions
 3 Months Ended
Jan. 03, 2025
USD ($)
Mar. 31, 2026
USD ($)
Mar. 31, 2026
EUR (€)
Dec. 31, 2025
USD ($)
Jan. 01, 2023
USD ($)
Dec. 31, 2022
USD ($)
Schedule Of Commitments And Contingencies [Line Items]            
General partner capital funding   $ 6,200,000        
Total investments at risk in respect of guarantees extended   $ 21,800        
Contingent obligations currently anticipated to expire end   2038        
Provision for cash clawback   $ 1,300,000        
Contingent Obligations (Clawback)   (8,400,000)        
Investments   $ 32,747,619   $ 32,212,111    
Blackstone Real Estate Investment Trust or BREIT            
Schedule Of Commitments And Contingencies [Line Items]            
Investments | €     € 1,000      
Percentage Of Incremental Cash Payment In Excess Of Target Return   5.00% 5.00%      
Security Owned and Pledged as Collateral, Associated Liabilities, Fair Value   $ 1,100,000        
Investments Pledged fair value   $ 1,500,000 € 200     $ 1,100,000
Common stock, value, subscriptions         $ 4,500,000  
Percentage of targeted annualized net return   9.25% 9.25%      
Blackstone Real Estate Investment Trust or BREIT | University of California            
Schedule Of Commitments And Contingencies [Line Items]            
Percentage of targeted annualized net return   11.25% 11.25%      
Cost of the investment   $ 4,500,000        
Settlement Agreement [Member]            
Schedule Of Commitments And Contingencies [Line Items]            
Loss Contingency, Name of Plaintiff Taylor I and Taylor II          
Settled Litigation [Member]            
Schedule Of Commitments And Contingencies [Line Items]            
Loss Contingency Settlement Value Among Dedendants $ 82,500          
Loss Contingency, Settlement Agreement, Court Franklin County Circuit Court          
Loss Contingency, Name of Defendant we and several other defendants          
Blackstone Holdings            
Schedule Of Commitments And Contingencies [Line Items]            
Loans held By employees for investment guaranteed   86,600        
Contingent Obligations (Clawback)   (7,600,000)        
Consolidated Blackstone Funds            
Schedule Of Commitments And Contingencies [Line Items]            
Funds signed investment commitments   787,900        
Consolidated Blackstone Funds | Portfolio Company Acquisition            
Schedule Of Commitments And Contingencies [Line Items]            
Signed investment commitments for portfolio company acquisitions in process of closing   $ 114,400