v2.4.0.6

Supplemental Information on Unaudited Pro Forma Basis (Detail) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2011
Business Acquisition, Pro Forma Information [Line Items]
Total Revenues	$ 1,315,307	$ 2,486,586
Net Income Attributable to The Blackstone Group L.P.	$ 92,904	$ 143,721
Net Income Per Common Unit - Basic	$ 0.20	$ 0.31
Net Income Per Common Unit - Diluted	$ 0.19	$ 0.31

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