Leases (Summary of Lease Information) (Details) - USD ($) $ in Millions		3 Months Ended
		Dec. 31, 2019	Sep. 30, 2019
Leases [Abstract]
Operating lease, right-of-use asset		$ 55.7
Short term lease obligation		12.0	$ 0.0
Operating lease, liability		55.6
Operating lease, liability, noncurrent		$ 43.6
Operating lease, weighted average remaining lease term		11 years
Operating lease, weighted average discount rate, percent		7.00%
Operating lease, expense	[1]	$ 3.7
Right-of-use asset obtained in exchange for operating lease liability		0.1
Operating lease, payments		$ 3.8

[1] Lease expense is included in cost of products sold or SG&A expenses based on the nature of the lease. Short-term lease expense is excluded from this amount and is not material.