Retirement Benefits (Schedule of estimated remaining cash contributions) (Details) $ in Thousands	12 Months Ended
	Sep. 30, 2015 USD ($)
United States Pension Plans of US Entity, Defined Benefit [Member]
Estimated future employer contributions in the next fiscal year	$ 24
United Kingdom Plan, Defined Benefit [Member]
Estimated future employer contributions in the next fiscal year	544
Japan Plan, Defined Benefit [Member]
Estimated future employer contributions in the next fiscal year	251
Other Postretirement Benefit Plans, Defined Benefit [Member]
Estimated future employer contributions in the next fiscal year	$ 4,103