Investments (Tables)

12 Months Ended

Sep. 30, 2021

Investments [Abstract]

Summary of investments

Investments consisted of the following:

(in millions)
as of September 30,	2021		2020
Investments, at fair value
Sponsored funds and separate accounts	$	368.3	$	303.4
Investments related to long-term incentive plans	160.0		146.6
Other equity and debt investments	60.0		54.8
Total investments, at fair value	588.3		504.8
Investments in equity method investees	814.3		716.2
Other investments	107.7		83.5
Total	$	1,510.3	$	1,304.5