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Accrued Performance Fees - Additional Information (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2017
USD ($)
fund
Sep. 30, 2016
USD ($)
Sep. 30, 2017
USD ($)
fund
Sep. 30, 2016
USD ($)
Dec. 31, 2016
fund
Segment Reporting Information [Line Items]          
Percentage of accrued performance fees related to certain Corporate Private Equity funds (percent) 31.00%   31.00%   27.00%
Number of Partnership's Corporate Private Equity funds related to accrued performance fees | fund 2   2   2
Performance fees $ 285.6 $ 214.7 $ 1,510.8 $ 570.8  
Performance Fee Revenue | Customer Concentration Risk          
Segment Reporting Information [Line Items]          
Percentage of performance fees related to certain Corporate Private Equity funds (percent) 39.00% 50.00% 65.00% 59.00%  
Performance fees $ 110.4 $ 107.9 $ 979.9 $ 338.2  
Performance Fee Revenue | Customer Concentration Risk | Carlyle Partners V, L.P.          
Segment Reporting Information [Line Items]          
Performance fees 39.7   301.0 129.7  
Performance Fee Revenue | Customer Concentration Risk | Carlyle Partners VI, L.P.          
Segment Reporting Information [Line Items]          
Performance fees 120.5 208.9 615.0 317.3  
Performance Fee Revenue | Customer Concentration Risk | Carlyle U.S. Equity Opportunities Fund LP          
Segment Reporting Information [Line Items]          
Performance fees (31.6)        
Performance Fee Revenue | Customer Concentration Risk | Carlyle International Energy Partners LP          
Segment Reporting Information [Line Items]          
Performance fees $ 47.6        
Performance Fee Revenue | Customer Concentration Risk | Carlyle Asia Partners IV, L.P.          
Segment Reporting Information [Line Items]          
Performance fees     $ 271.3    
Performance Fee Revenue | Customer Concentration Risk | Carlyle Asia Partners III, L.P.          
Segment Reporting Information [Line Items]          
Performance fees   (20.8)      
Performance Fee Revenue | Customer Concentration Risk | Carlyle Realty Partners V, L.P.          
Segment Reporting Information [Line Items]          
Performance fees   $ (50.9)      
Performance Fee Revenue | Customer Concentration Risk | Carlyle Realty Partners VII, L.P.          
Segment Reporting Information [Line Items]          
Performance fees       $ 111.2