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Consolidated Investment Product - Additional Information (Details)
12 Months Ended
Aug. 17, 2015
USD ($)
Dec. 31, 2015
USD ($)
Product
Dec. 31, 2014
USD ($)
Product
Variable Interest Entity [Line Items]      
Investment of capital   $ 40,000,000  
Number of consolidated investment products | Product   1 0
Consolidated Investment Product [Member]      
Variable Interest Entity [Line Items]      
Debt outstanding   $ 152,597,000 $ 0
Consolidated Investment Product [Member] | Secured Debt [Member] | Financing Facility [Member]      
Variable Interest Entity [Line Items]      
Debt term 3 years    
Maximum borrowing capacity $ 160,000,000.0    
Debt outstanding   $ 152,600,000  
Consolidated Investment Product [Member] | Secured Debt [Member] | Financing Facility [Member] | LIBOR [Member]      
Variable Interest Entity [Line Items]      
Basis spread on variable interest rate 1.25%    
Term of initial ramp-up period 9 months    
Basis spread on variable interest rate upon completion of initial ramp-up period 2.00%