Basis of Presentation and Accounting Policies (Details Textual) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015	Sep. 30, 2015
Accounting Policies [Abstract]
Allowance for doubtful accounts	$ 23.3		$ 23.3		$ 22.0
Allowance for certain customer returns, rebates and incentives	$ 8.9		$ 8.9		9.2
Antidilutive share-based compensation awards	1.8	1.2	2.6	1.5
Capital expenditures in accounts payable or other current liabilities at period end			$ 19.3	$ 10.2
Outstanding purchase of common stock recorded in accounts payable			$ 8.4	$ 9.7
Scenario, Previously Reported [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Current deferred tax assets retrospectively reclassified to noncurrent					$ 151.2