Unvested Units, After Expected Forfeitures (Detail) |
9 Months Ended |
---|---|
Sep. 30, 2018
shares
| |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] | |
Blackstone Holdings Partnership Units (Units) | 24,889,558 |
Deferred Restricted Blackstone Common Units (Units) | 7,628,833 |
Total Equity-Based Awards (Units) | 32,518,391 |
Phantom Units (Units) | 38,488 |
Blackstone Holdings Partnership Units (Weighted-Average Service Period in Years) | 3 years 7 months 6 days |
Deferred Restricted Blackstone Common Units (Weighted-Average Service in Years) | 2 years 4 months 24 days |
Total Equity-Based Awards (Weighted-Average Service Period in Years) | 3 years 3 months 18 days |
Phantom Units (Weighted-Average Service Period in Years) | 2 years 8 months 12 days |