v2.4.0.6
Basic and Diluted Net Income (Loss) Per Common Unit (Detail) (USD $)
In Thousands, except Share data, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Earnings Per Share [Line Items]        
Net Income (Loss) Attributable to The Blackstone Group L.P. $ (74,964) $ 86,237 $ (16,639) $ 128,941
Weighted-Average Common Units Outstanding 528,778,977 476,289,647 517,882,253 462,094,878
Net Income (Loss) Per Common Unit $ (0.14) $ 0.18 $ (0.03) $ 0.28
Weighted-Average Common Units Outstanding 528,778,977 476,289,647 517,882,253 462,094,878
Weighted-Average Unvested Deferred Restricted Common Units   7,353,999   6,523,856
Weighted-Average Diluted Common Units Outstanding 528,778,977 483,643,646 517,882,253 468,618,734
Diluted Net Income (Loss) Per Common Unit $ (0.14) $ 0.18 $ (0.03) $ 0.28