XML 116 R100.htm IDEA: XBRL DOCUMENT v3.7.0.1
Segment Reporting - Total Segments to Partnership Income before Provision for Taxes Reconciliation (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2017
Mar. 31, 2016
Dec. 31, 2016
Segment Reporting Information [Line Items]      
Revenues $ 1,120.1 $ 483.1  
Expenses 809.5 459.4  
Other income 17.1 (8.4)  
Economic net income 327.7 15.3  
Total assets 10,375.2   $ 9,973.0
Total Reportable Segments      
Segment Reporting Information [Line Items]      
Revenues 1,001.2 451.1  
Expenses 601.1 362.6  
Other income 0.0 0.0  
Economic net income 400.1 88.5  
Total assets 6,215.3    
Consolidated Funds      
Segment Reporting Information [Line Items]      
Revenues 42.9    
Expenses 53.0    
Other income 17.1    
Economic net income 7.0 (9.2)  
Total assets 4,343.0    
Reconciling Items      
Segment Reporting Information [Line Items]      
Revenues 76.0 3.1  
Expenses 155.4 67.1  
Other income 0.0 0.0  
Economic net income (79.4) $ (64.0)  
Total assets $ (183.1)