Commitments and Contingent Liabilities (Details Textuals) $ in Millions	12 Months Ended
	Sep. 30, 2016 USD ($)
Loss Contingency [Abstract]
Reasonably possible costs from environmental remediation costs and indemnification liabilities	$ 133.6
Reasonably possible costs from environmental remediation costs and indemnification liabilities, net of related receivables	$ 105.2
Number of Superfund sites designated potentially responsible party at	13