Investments - Consolidated Funds Narrative (Details) $ in Billions	12 Months Ended
	Dec. 31, 2015 USD ($) collateralized_loan_obligation
Equity Method Investments and Joint Ventures [Abstract]
Number of CLOs | collateralized_loan_obligation	8
Total assets of the CLOs that were formed during the year | $	$ 5.0
Minimum percent of aggregate assets for individual investments with fair value	5.00%