Legal, Environmental and Other Contingencies (Details) - Pending Litigation	12 Months Ended
	Sep. 30, 2015 action item
Legal, Environmental and Other Contingencies
Number of areas of concern that required investigation	1
Number of solid waste management units evaluated under RCRA, as required by IDEM	1
Claims Involving Personal Injuries Allegedly Relating to the Company's Products
Legal, Environmental and Other Contingencies
Number of actions in which the entity is involved | action	2