Commitments and Contingencies Future Minimum Lease Commitments (Tables)

12 Months Ended

Sep. 30, 2017

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, 2017 are as follows:

(in millions)
Year ending September 30,
2018	$	8.9
2019	8.3
2020	7.7
2021	6.7
2022	4.7
Thereafter	10.1
	$	46.4