v2.4.0.8
Net Income Per Common Unit - Additional Information (Detail) (USD $)
In Millions, except Share data, unless otherwise specified
12 Months Ended 1 Months Ended
Dec. 31, 2013
Dec. 31, 2011
Blackstone Common Units
Jan. 31, 2008
Blackstone
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]      
Amount authorized to repurchase under unit repurchase program     $ 500
Amount remaining available for repurchases 335.8    
Common stock repurchased, units   116,270  
Common stock repurchased, value   $ 2.1