Business Segment Information (Details Textuals) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2013
Segment Reporting Information [Line Items]
Identifiable assets	$ 6,404.7	$ 6,224.3	$ 5,844.6
Capital expenditures	122.9	141.0	146.2
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Identifiable assets	2,536.1	2,076.1	1,991.2
Capital expenditures	36.7	56.2	61.9
Corporate, Non-Segment [Member] | Shared by segments and used in operating activities [Member]
Segment Reporting Information [Line Items]
Identifiable assets	266.8	294.1	299.2
Capital expenditures	$ 36.7	$ 56.2	$ 61.9
Sales Revenue, Net [Member] | Customer Concentration Risk [Member]
Segment Reporting Information [Line Items]
Portion of total sales to largest distributor	10.00%	10.00%	10.00%