Variable Interest Entities - Assets and Liabilities of Funds that are VIEs (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Assets
Investments at fair value	$ 322.4	$ 321.4
Liabilities
Liabilities of consolidated Funds	1,279.6	1,377.6
Variable Interest Entity, Primary Beneficiary
Assets
Investments at fair value	124.6	124.8
Other assets of consolidated Funds	72.9	19.8
Total Assets	197.5	144.6
Liabilities
Liabilities of consolidated Funds	10.9	14.9
Total Liabilities	$ 10.9	$ 14.9

Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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-Publisher FASB
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