Property, Plant and Equipment - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Property, Plant and Equipment [Line Items]
Asset Impairment Charges	$ 27.1	$ 153.3	$ 2.1
Land, buildings and improvements	937.7	836.4
Less: Accumulated depreciation	394.3	326.9
Property, plant and equipment, net (Note 11)	543.4	509.5
Land, buildings and improvements
Property, Plant and Equipment [Line Items]
Land, buildings and improvements	196.9	192.2
Machinery, equipment and other
Property, Plant and Equipment [Line Items]
Land, buildings and improvements	553.1	495.1
Assets Held under Capital Leases [Member]
Property, Plant and Equipment [Line Items]
Land, buildings and improvements	$ 57.7	$ 51.8