Pension Plans (Tables)

6 Months Ended

Mar. 31, 2019

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
	2019			2018			2019			2018
Service cost	$	—		$	—		$	0.2		$	0.1
Interest cost	5.1			4.7			0.8			1.0
Expected return on plan assets	(6.5		)	(7.6		)	(1.3		)	(1.6		)
Amortization of unrecognized net losses	1.0			1.2			0.2			0.6
Net periodic (benefit)/cost	$	(0.4	)	$	(1.7	)	$	(0.1	)	$	0.1

	For the Six Months Ended March 31,
	U.S.						International
	2019			2018			2019			2018
Service cost	$	—		$	—		$	0.3		$	0.3
Interest cost	10.2			9.4			1.4			2.1
Expected return on plan assets	(13.0		)	(15.1		)	(2.5		)	(3.2		)
Amortization of unrecognized net losses	2.0			2.2			0.5			1.1
Settlement charge	—			0.1			—			—
Net periodic (benefit)/cost	$	(0.8	)	$	(3.4	)	$	(0.3	)	$	0.3