Pension Plans (Tables)

6 Months Ended

Mar. 31, 2021

Retirement Benefits [Abstract]

Schedule of Net Benefit Costs

The Company’s net periodic pension (benefit)/cost for these plans are as follows:

	For the Quarter Ended March 31,
	U.S.				International
	2021		2020		2021		2020
Service cost	$	—	$	—	$	0.2	$	0.2
Interest cost	3.2		4.0		0.4		0.3
Expected return on plan assets	(5.5)		(6.1)		(0.8)		(0.6)
Amortization of unrecognized net losses	1.8		1.6		0.4		0.3
Net periodic (benefit)/cost	$	(0.5)	$	(0.5)	$	0.2	$	0.2
	For the Six Months Ended March 31,
	U.S.				International
	2021		2020		2021		2020
Service cost	$	—	$	—	$	0.4	$	0.4
Interest cost	6.4		8.0		0.8		0.6
Expected return on plan assets	(11.0)		(12.2)		(1.6)		(1.2)
Amortization of unrecognized net losses	3.6		3.2		0.8		0.6
Net periodic (benefit)/cost	$	(1.0)	$	(1.0)	$	0.4	$	0.4