Defined Benefit Pension and Other Postretirement Plans (Details) - USD ($)	3 Months Ended
	Dec. 31, 2015	Dec. 31, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution made to Pension and Post-retirement Plans	$ 2,500,000	$ 2,800,000
Expected contribution to pension plan during remainder of fiscal year	7,400,000
Other Postretirement Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Contribution made to Pension and Post-retirement Plans	$ 0	$ 0