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Summary of Status of Partnership's Unvested Equity-Based Awards (Detail)
 3 Months Ended
Mar. 31, 2024
$ / shares
shares
Blackstone | Blackstone Partnership Units  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning Balance | shares 4,585,893
Granted (Units) | shares 0
Vested (Units) | shares (268,682)
Forfeited (Units) | shares (35,431)
Ending Balance | shares 4,281,780
Beginning Balance | $ / shares $ 38.94
Granted (Weighted-Average Grant Date Fair Value) | $ / shares 0
Vested (Weighted-Average Grant Date Fair Value) | $ / shares 33.25
Forfeited (Weighted-Average Grant Date Fair Value) | $ / shares 46.58
Ending Balance | $ / shares $ 39.23
Blackstone Group Inc. | Equity Settled Awards Deferred Restricted Shares Of Common Stock  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning Balance | shares 36,456,644
Granted (Units) | shares 1,708,994
Vested (Units) | shares (2,839,811)
Forfeited (Units) | shares (597,142)
Ending Balance | shares 34,728,685
Beginning Balance | $ / shares $ 86.05
Granted (Weighted-Average Grant Date Fair Value) | $ / shares 130.25
Vested (Weighted-Average Grant Date Fair Value) | $ / shares 88.53
Forfeited (Weighted-Average Grant Date Fair Value) | $ / shares 88.2
Ending Balance | $ / shares $ 88.04
Blackstone Group Inc. | Cash Settled Awards Phantom Shares  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Beginning Balance | shares 85,447
Granted (Units) | shares 7,362
Vested (Units) | shares (7,100)
Forfeited (Units) | shares (15,130)
Ending Balance | shares 70,579
Beginning Balance | $ / shares $ 114.5
Granted (Weighted-Average Grant Date Fair Value) | $ / shares 128.09
Vested (Weighted-Average Grant Date Fair Value) | $ / shares 128.09
Forfeited (Weighted-Average Grant Date Fair Value) | $ / shares 128.09
Ending Balance | $ / shares $ 128.49