Revenue (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

Management fee revenue by segment and asset class is comprised of the following for the years ended December 31 (in millions):

	2019		2018		2017
Quant & Solutions
Global / non-U.S. equity	$	370.8	$	377.4	$	345.0
Alternatives
Alternatives	165.0		208.3		171.7
Liquid Alpha
Global / non-U.S. equity	90.7		112.9		120.6
Fixed income	26.0		26.8		27.8
U.S. equity	154.5		179.6		192.9
Management fee revenue	$	807.0	$	905.0	$	858.0