Commitments and Contingencies Future Minimum Lease Commitments (Tables)

12 Months Ended

Sep. 30, 2018

Commitments and Contingencies Disclosure [Abstract]

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Future aggregate minimum lease payments under noncancelable operating leases as of September 30, 2018 are as follows:

(in millions)
Year ending September 30,
2019	$	10.1
2020	9.3
2021	8.1
2022	5.8
2023	4.5
Thereafter	5.6
	$	43.4